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Anatomy & Physiology: Endocrine System Practice Exam Quiz
Deepen your knowledge of the human endocrine system with this targeted practice exam quiz. Ideal for learners studying anatomy and physiology, this resource explores how hormones regulate vital processes throughout the body and how various glands function in maintaining homeostasis.
Key topics include the structure and function of endocrine glands such as the pituitary, thyroid, adrenal, pancreas, and hypothalamus. Learners will review hormonal pathways, feedback mechanisms, and the physiological roles of key hormones in metabolism, growth, reproduction, and stress response.
The content also highlights endocrine system disorders, including diabetes, hyperthyroidism, Addison’s disease, and hormonal imbalances, helping learners connect theory with clinical understanding. This tool is designed to support both academic learning and real-world application in health science fields.
Whether preparing for exams or reinforcing lecture material, this resource supports active recall and retention of essential endocrine system concepts.
Which of the following glands produces insulin?
A) Thyroid
B) Pancreas
C) Pituitary
D) Adrenal
What is the primary function of the hypothalamus in the endocrine system?
A) Regulate metabolism
B) Secrete hormones that regulate the pituitary gland
C) Control blood sugar levels
D) Control body temperature
Which hormone is primarily responsible for regulating metabolism?
A) Insulin
B) Thyroxine (T4)
C) Cortisol
D) Prolactin
Which hormone is released by the adrenal glands in response to stress?
A) Estrogen
B) Testosterone
C) Cortisol
D) Oxytocin
Which of the following is a function of antidiuretic hormone (ADH)?
A) Stimulates milk production
B) Increases water reabsorption in the kidneys
C) Stimulates uterine contractions
D) Increases blood glucose levels
What is the role of parathyroid hormone (PTH)?
A) Regulate calcium levels in the blood
B) Stimulate milk production
C) Increase glucose uptake by cells
D) Regulate the menstrual cycle
Which hormone is produced by the pineal gland?
A) Melatonin
B) Estrogen
C) Progesterone
D) Cortisol
Which of the following glands secretes adrenaline (epinephrine)?
A) Pineal gland
B) Pituitary gland
C) Adrenal glands
D) Thyroid gland
The hormone aldosterone helps to regulate which of the following?
A) Blood glucose levels
B) Blood pressure
C) Milk production
D) Immune function
Which gland produces growth hormone (GH)?
A) Pineal gland
B) Adrenal glands
C) Pituitary gland
D) Thyroid gland
What is the primary effect of insulin?
A) Stimulate red blood cell production
B) Lower blood glucose levels
C) Increase blood calcium levels
D) Stimulate digestion
Which of the following is a function of the thyroid gland?
A) Regulation of water balance
B) Regulation of metabolism
C) Regulation of calcium balance
D) Production of cortisol
Which hormone does the adrenal medulla secrete?
A) Insulin
B) Cortisol
C) Epinephrine
D) Thyroxine
The function of the hormone oxytocin is primarily to:
A) Stimulate uterine contractions during labor
B) Regulate calcium homeostasis
C) Promote glucose uptake
D) Control body temperature
Which of the following is produced by the beta cells of the pancreas?
A) Insulin
B) Glucagon
C) Cortisol
D) Somatostatin
Which of the following is released by the anterior pituitary gland?
A) Oxytocin
B) Prolactin
C) Antidiuretic hormone
D) Melatonin
Which hormone is responsible for the fight-or-flight response?
A) Insulin
B) Epinephrine
C) Thyroxine
D) Estrogen
Which gland is known as the “master gland” of the endocrine system?
A) Pineal gland
B) Thyroid gland
C) Pituitary gland
D) Parathyroid gland
What is the main function of thyroid-stimulating hormone (TSH)?
A) Stimulate the release of thyroid hormones
B) Increase blood calcium levels
C) Stimulate milk production
D) Promote growth in children
Which of the following is NOT a function of cortisol?
A) Promote gluconeogenesis
B) Reduce inflammation
C) Regulate blood pressure
D) Stimulate the production of red blood cells
Which of the following hormones is involved in regulating the menstrual cycle?
A) Prolactin
B) Estrogen
C) Thyroxine
D) Growth hormone
Which organ is responsible for the secretion of glucagon?
A) Kidneys
B) Liver
C) Pancreas
D) Adrenal glands
What is the effect of thyroid hormones (T3 and T4)?
A) Increase heart rate
B) Decrease metabolic rate
C) Promote digestion
D) Regulate calcium levels
Which of the following is a function of prolactin?
A) Stimulate milk production
B) Regulate calcium metabolism
C) Increase water retention
D) Regulate stress response
Which of the following hormones regulates sodium and potassium balance?
A) Insulin
B) Aldosterone
C) Progesterone
D) Parathyroid hormone
Which hormone stimulates the release of eggs from the ovaries?
A) Luteinizing hormone (LH)
B) Estrogen
C) Prolactin
D) Oxytocin
What is the role of thymosin?
A) Stimulate the production of red blood cells
B) Regulate the immune system
C) Control metabolism
D) Promote bone growth
Which of the following hormones is primarily involved in the regulation of blood calcium levels?
A) Thyroxine
B) Parathyroid hormone
C) Growth hormone
D) Insulin
What is the main function of the hormone leptin?
A) Control appetite and energy balance
B) Regulate blood glucose levels
C) Stimulate uterine contractions
D) Control circadian rhythms
What type of hormone is aldosterone?
A) Glucocorticoid
B) Mineralocorticoid
C) Catecholamine
D) Androgen
31. Which of the following is NOT produced by the anterior pituitary gland?
A) Luteinizing hormone (LH)
B) Thyroid-stimulating hormone (TSH)
C) Follicle-stimulating hormone (FSH)
D) Antidiuretic hormone (ADH)
32. Which of the following hormones is responsible for stimulating milk secretion in the mammary glands?
A) Oxytocin
B) Prolactin
C) Estrogen
D) Cortisol
33. Which hormone is responsible for the development of male secondary sex characteristics?
A) Estrogen
B) Testosterone
C) Progesterone
D) Cortisol
34. Which of the following hormones increases blood sugar levels?
A) Insulin
B) Glucagon
C) Prolactin
D) Estrogen
35. Which of the following is the primary function of the hormone calcitonin?
A) Increase calcium levels in the blood
B) Decrease calcium levels in the blood
C) Stimulate the thyroid gland
D) Regulate the menstrual cycle
36. Where is the hormone melatonin primarily produced?
A) Pituitary gland
B) Thyroid gland
C) Pineal gland
D) Adrenal glands
37. Which of the following is a characteristic of type 1 diabetes mellitus?
A) Insulin resistance
B) Autoimmune destruction of pancreatic beta cells
C) Overproduction of insulin
D) Increased risk of hyperthyroidism
38. Which of the following is a result of hyperthyroidism?
A) Weight loss
B) Weight gain
C) Decreased heart rate
D) Increased tolerance to heat
39. Which of the following hormones is released from the adrenal cortex?
A) Epinephrine
B) Aldosterone
C) Oxytocin
D) Thyroxine
40. What is the main function of the hormone erythropoietin (EPO)?
A) Stimulate red blood cell production
B) Increase glucose uptake by cells
C) Regulate blood pressure
D) Stimulate digestion
41. Which of the following hormones is primarily responsible for regulating the sleep-wake cycle?
A) Estrogen
B) Testosterone
C) Melatonin
D) Cortisol
42. Which of the following hormones is secreted by the posterior pituitary gland?
A) Growth hormone
B) Prolactin
C) Oxytocin
D) Thyroid-stimulating hormone
43. Which hormone increases sodium reabsorption by the kidneys?
A) Aldosterone
B) Cortisol
C) Thyroxine
D) Parathyroid hormone
44. Which of the following glands is located on top of the kidneys?
A) Thyroid glands
B) Adrenal glands
C) Parathyroid glands
D) Pineal glands
45. What is the effect of parathyroid hormone (PTH) on bone?
A) Decreases calcium release
B) Stimulates calcium release
C) Stimulates calcium deposition
D) Increases collagen production
46. What is the function of the hormone somatostatin?
A) Stimulate growth and cell division
B) Inhibit the release of insulin and glucagon
C) Increase production of red blood cells
D) Stimulate the release of thyroid hormones
47. Which of the following hormones is released by the ovaries?
A) Estrogen
B) Testosterone
C) Cortisol
D) Thyroxine
48. Which of the following hormones is produced by the testes?
A) Progesterone
B) Estrogen
C) Testosterone
D) Oxytocin
49. Which of the following is a direct effect of insulin?
A) Stimulate glycogen breakdown
B) Increase glucose uptake by cells
C) Increase blood sugar levels
D) Increase lipolysis
50. Which hormone plays a key role in regulating the body’s response to stress?
A) Thyroid hormone
B) Epinephrine
C) Prolactin
D) Oxytocin
51. What is the primary effect of insulin on blood glucose levels?
A) Increase glucose levels
B) Decrease glucose levels
C) No effect on glucose levels
D) Increase protein synthesis
52. Which of the following hormones regulates water balance in the body?
A) Parathyroid hormone
B) Antidiuretic hormone
C) Insulin
D) Cortisol
53. Which of the following is a function of the hormone ghrelin?
A) Inhibit appetite
B) Stimulate hunger
C) Regulate blood pressure
D) Stimulate glucose uptake
54. Which hormone regulates the release of thyroid hormones from the thyroid gland?
A) Thyroid-stimulating hormone (TSH)
B) Follicle-stimulating hormone (FSH)
C) Growth hormone (GH)
D) Adrenocorticotropic hormone (ACTH)
55. Which of the following hormones is involved in the body’s response to low blood sugar?
A) Insulin
B) Cortisol
C) Glucagon
D) Estrogen
56. Which of the following hormones plays a major role in regulating the menstrual cycle?
A) Thyroid hormone
B) Estrogen
C) Cortisol
D) Prolactin
57. What is the main function of the hormone aldosterone?
A) Increase sodium retention in the kidneys
B) Stimulate milk production
C) Stimulate growth
D) Regulate the circadian rhythm
58. Which of the following hormones is primarily responsible for the fight-or-flight response?
A) Thyroxine
B) Epinephrine
C) Prolactin
D) Cortisol
59. Which of the following hormones is secreted by the adrenal medulla?
A) Epinephrine
B) Cortisol
C) Testosterone
D) Thyroxine
60. Which of the following is a function of thyroid hormone (T3 and T4)?
A) Increase metabolism
B) Regulate sodium levels
C) Stimulate milk production
D) Increase calcium absorption
61. Which hormone is released by the thyroid gland to regulate calcium levels in the blood?
A) Thyroxine
B) Parathyroid hormone
C) Calcitonin
D) Insulin
62. Which of the following is produced by the hypothalamus to regulate the release of hormones from the pituitary gland?
A) Growth hormone
B) Thyroid-stimulating hormone
C) Gonadotropin-releasing hormone
D) Oxytocin
63. What is the primary function of the hormone thymosin?
A) Stimulate the immune system
B) Regulate metabolism
C) Increase red blood cell production
D) Promote milk production
64. Which of the following glands is responsible for producing adrenaline (epinephrine)?
A) Thyroid
B) Pineal
C) Adrenal medulla
D) Parathyroid
65. Which of the following hormones increases the production of milk in the mammary glands?
A) Oxytocin
B) Estrogen
C) Prolactin
D) Progesterone
66. Which hormone is responsible for the fight or flight response in the body?
A) Epinephrine
B) Cortisol
C) Insulin
D) Aldosterone
67. Which of the following hormones is responsible for regulating water balance by acting on the kidneys?
A) Adrenocorticotropic hormone
B) Antidiuretic hormone
C) Thyroid-stimulating hormone
D) Prolactin
68. Which hormone is responsible for the development of the female secondary sex characteristics?
A) Estrogen
B) Progesterone
C) Testosterone
D) Luteinizing hormone
69. Which of the following glands is responsible for producing insulin?
A) Adrenal glands
B) Thyroid gland
C) Pancreas
D) Pituitary gland
70. What is the function of the hormone oxytocin?
A) Regulate metabolic rate
B) Stimulate uterine contractions during labor
C) Increase calcium absorption
D) Stimulate the production of insulin
71. Which of the following hormones helps to regulate metabolism and growth?
A) Thyroxine
B) Cortisol
C) Insulin
D) Growth hormone
72. Which of the following hormones is responsible for stimulating the adrenal cortex to release corticosteroids?
A) Growth hormone
B) Adrenocorticotropic hormone
C) Follicle-stimulating hormone
D) Luteinizing hormone
73. Which of the following hormones is produced by the anterior pituitary gland?
A) Antidiuretic hormone
B) Oxytocin
C) Growth hormone
D) Thyroxine
74. Which of the following glands produces cortisol?
A) Pineal gland
B) Adrenal glands
C) Thyroid gland
D) Pituitary gland
75. What effect does aldosterone have on the kidneys?
A) Increases sodium retention
B) Stimulates red blood cell production
C) Decreases potassium retention
D) Stimulates water reabsorption
76. Which of the following hormones is secreted by the pancreas and lowers blood glucose levels?
A) Insulin
B) Glucagon
C) Cortisol
D) Thyroxine
77. What is the main function of the hormone leptin?
A) Stimulate appetite
B) Regulate fat storage
C) Increase red blood cell production
D) Promote bone growth
78. Which of the following is a function of cortisol?
A) Promote the breakdown of fats and proteins
B) Increase glucose storage
C) Stimulate milk production
D) Inhibit water retention
79. What effect does thyroid hormone have on the body’s metabolism?
A) Increases metabolism
B) Decreases metabolism
C) Stimulates protein synthesis
D) Increases calcium storage
80. Which hormone is responsible for the regulation of the circadian rhythm?
A) Growth hormone
B) Melatonin
C) Cortisol
D) Thyroxine
81. Which of the following hormones is released by the adrenal medulla during stress?
A) Epinephrine
B) Cortisol
C) Aldosterone
D) Thyroxine
82. Which of the following hormones is involved in the regulation of the menstrual cycle and pregnancy?
A) Progesterone
B) Testosterone
C) Glucagon
D) Cortisol
83. Which of the following hormones plays a key role in the regulation of the body’s stress response?
A) Epinephrine
B) Thyroxine
C) Insulin
D) Growth hormone
84. Which of the following is the function of prolactin?
A) Stimulate milk production
B) Regulate blood pressure
C) Increase glucose uptake
D) Stimulate uterine contractions
85. Which of the following hormones is responsible for stimulating the release of egg cells from the ovaries?
A) Follicle-stimulating hormone
B) Estrogen
C) Prolactin
D) Oxytocin
86. Which of the following hormones is primarily responsible for regulating the stress response?
A) Epinephrine
B) Growth hormone
C) Prolactin
D) Oxytocin
87. Which hormone regulates the production of red blood cells in the bone marrow?
A) Erythropoietin
B) Insulin
C) Prolactin
D) Cortisol
88. Which of the following hormones increases the body’s tolerance to stress?
A) Cortisol
B) Insulin
C) Thyroxine
D) Oxytocin
89. Which of the following hormones stimulates the production of milk in the mammary glands?
A) Oxytocin
B) Progesterone
C) Prolactin
D) Luteinizing hormone
90. Which of the following hormones is produced by the posterior pituitary and stimulates the contraction of smooth muscle in the uterus during labor?
A) Oxytocin
B) Thyroid hormone
C) Prolactin
D) Growth hormone
91. Which hormone produced by the hypothalamus is responsible for stimulating the release of growth hormone from the anterior pituitary?
A) Somatostatin
B) Growth hormone-releasing hormone
C) Thyrotropin-releasing hormone
D) Corticotropin-releasing hormone
92. Which gland produces melatonin?
A) Pituitary gland
B) Pineal gland
C) Adrenal glands
D) Thyroid gland
93. Which of the following hormones is responsible for regulating the body’s circadian rhythm?
A) Cortisol
B) Insulin
C) Melatonin
D) Prolactin
94. Which hormone is produced by the adrenal cortex to regulate sodium and potassium levels in the body?
A) Aldosterone
B) Epinephrine
C) Cortisol
D) Thyroxine
95. What is the role of parathyroid hormone (PTH)?
A) Increases calcium levels in the blood
B) Decreases calcium levels in the blood
C) Increases sodium retention in kidneys
D) Stimulates insulin release
96. Which of the following is an effect of cortisol?
A) Increase blood glucose levels
B) Decrease blood glucose levels
C) Stimulate digestion
D) Increase calcium absorption
97. Which of the following hormones stimulates the secretion of gastric juices in the stomach?
A) Secretin
B) Cholecystokinin
C) Gastrin
D) Insulin
98. Which of the following hormones is produced by the pancreas and raises blood glucose levels?
A) Insulin
B) Glucagon
C) Prolactin
D) Thyroxine
99. Which of the following is responsible for the “fight or flight” response?
A) Insulin
B) Growth hormone
C) Epinephrine
D) Oxytocin
100. Which of the following hormones helps regulate sleep patterns and is produced by the pineal gland?
A) Melatonin
B) Insulin
C) Cortisol
D) Oxytocin
101. Which of the following hormones is released by the anterior pituitary to stimulate the release of thyroid hormones from the thyroid gland?
A) Growth hormone
B) Thyroid-stimulating hormone
C) Luteinizing hormone
D) Adrenocorticotropic hormone
102. Which hormone produced by the hypothalamus inhibits the release of growth hormone from the pituitary?
A) Thyrotropin-releasing hormone
B) Growth hormone-releasing hormone
C) Somatostatin
D) Gonadotropin-releasing hormone
103. Which of the following hormones is produced by the ovaries and regulates the menstrual cycle?
A) Progesterone
B) Testosterone
C) Estrogen
D) Prolactin
104. Which of the following is true about the endocrine system?
A) It uses electrical impulses to communicate
B) It communicates through chemical signals (hormones)
C) It regulates body temperature
D) It is responsible for voluntary muscle control
105. What is the primary effect of insulin on the body?
A) Stimulate the breakdown of glycogen to glucose
B) Stimulate the absorption of glucose by cells
C) Increase fat storage
D) Increase blood sugar levels
106. Which of the following is a function of thyroid hormone (T3 and T4)?
A) Regulate calcium levels
B) Stimulate the release of insulin
C) Regulate metabolism
D) Increase red blood cell production
107. Which hormone is responsible for the regulation of blood calcium levels by decreasing calcium levels in the blood?
A) Parathyroid hormone
B) Calcitonin
C) Insulin
D) Thyroxine
108. What is the function of the hormone insulin in glucose metabolism?
A) Increases blood glucose levels
B) Stimulates cells to absorb glucose from the blood
C) Stimulates the breakdown of glycogen into glucose
D) Inhibits glucose absorption in the intestines
109. Which of the following hormones increases the heart rate and blood pressure during stress?
A) Cortisol
B) Estrogen
C) Epinephrine
D) Glucagon
110. Which of the following hormones plays a key role in the regulation of blood pressure?
A) Aldosterone
B) Insulin
C) Progesterone
D) Melatonin
111. What is the main action of growth hormone (GH)?
A) Stimulates the growth of bones and muscles
B) Increases the production of milk in the mammary glands
C) Stimulates the secretion of insulin
D) Increases the release of glucose from the liver
112. Which of the following hormones is released by the adrenal glands and plays a role in reducing inflammation?
A) Cortisol
B) Insulin
C) Progesterone
D) Aldosterone
113. Which of the following hormones increases the body’s sensitivity to insulin?
A) Cortisol
B) Adrenaline
C) Estrogen
D) Growth hormone
114. What effect does aldosterone have on blood pressure?
A) Decreases blood pressure
B) Increases blood pressure
C) Has no effect on blood pressure
D) Regulates blood sugar levels
115. Which of the following is a function of the hormone cortisol?
A) Stimulates growth and repair of tissues
B) Regulates metabolism and reduces inflammation
C) Increases blood pressure by causing vasodilation
D) Stimulates the production of red blood cells
116. Which hormone is responsible for the production of sperm in males?
A) Testosterone
B) Estrogen
C) Progesterone
D) Follicle-stimulating hormone
117. Which of the following hormones promotes the formation of the corpus luteum in females?
A) Progesterone
B) Luteinizing hormone
C) Estrogen
D) Follicle-stimulating hormone
118. What is the effect of thyroid hormone on the body?
A) It regulates metabolism
B) It stimulates the immune response
C) It helps in the absorption of nutrients in the intestines
D) It promotes the release of growth hormone
119. Which of the following hormones is produced by the pituitary gland and promotes the release of milk from the mammary glands?
A) Prolactin
B) Oxytocin
C) Thyroid-stimulating hormone
D) Growth hormone
120. Which of the following is true about the action of antidiuretic hormone (ADH)?
A) It promotes the excretion of water by the kidneys
B) It stimulates the release of insulin
C) It decreases water retention by the kidneys
D) It increases water retention by the kidneys
121. Which of the following hormones is produced by the adrenal medulla?
A) Cortisol
B) Epinephrine
C) Aldosterone
D) Thyroxine
122. Which hormone stimulates the production of milk in the mammary glands?
A) Oxytocin
B) Prolactin
C) Luteinizing hormone
D) Growth hormone
123. Which of the following is a function of the parathyroid hormone (PTH)?
A) Stimulate the production of thyroid hormone
B) Increase calcium absorption from the kidneys
C) Increase calcium levels in the blood
D) Stimulate the release of insulin
124. What is the primary action of the hormone cortisol?
A) Increase protein synthesis
B) Promote fat storage
C) Regulate metabolism and stress response
D) Stimulate the production of red blood cells
125. Which gland is responsible for the production of insulin?
A) Adrenal gland
B) Thyroid gland
C) Pineal gland
D) Pancreas
126. Which of the following hormones regulates the body’s salt balance?
A) Thyroxine
B) Cortisol
C) Aldosterone
D) Insulin
127. Which hormone is released by the anterior pituitary and stimulates the production of estrogen and progesterone in females?
A) Luteinizing hormone
B) Follicle-stimulating hormone
C) Prolactin
D) Thyroid-stimulating hormone
128. Which of the following hormones is responsible for the fight-or-flight response during stress?
A) Thyroxine
B) Cortisol
C) Epinephrine
D) Growth hormone
129. What is the primary function of insulin?
A) Increases blood glucose levels
B) Stimulates the liver to release glucose
C) Stimulates the absorption of glucose into cells
D) Stimulates fat breakdown
130. Which of the following hormones is involved in the regulation of the menstrual cycle?
A) Thyroxine
B) Progesterone
C) Epinephrine
D) Cortisol
131. Which hormone produced by the thyroid gland increases metabolic rate?
A) Thyroxine (T4)
B) Parathyroid hormone
C) Cortisol
D) Insulin
132. Which hormone stimulates the production of red blood cells in the bone marrow?
A) Erythropoietin
B) Growth hormone
C) Adrenaline
D) Thyroid hormone
133. Which of the following hormones regulates calcium and phosphate levels in the body?
A) Parathyroid hormone
B) Thyroxine
C) Growth hormone
D) Cortisol
134. Which hormone produced by the anterior pituitary stimulates the release of thyroid hormones from the thyroid gland?
A) Growth hormone
B) Thyroid-stimulating hormone
C) Luteinizing hormone
D) Follicle-stimulating hormone
135. Which of the following hormones helps to control blood sugar levels by promoting glucose uptake into cells?
A) Insulin
B) Glucagon
C) Thyroxine
D) Cortisol
136. Which of the following hormones is responsible for regulating the release of breast milk?
A) Growth hormone
B) Oxytocin
C) Prolactin
D) Estrogen
137. Which of the following is a primary function of glucagon?
A) Increase blood glucose levels
B) Stimulate the release of insulin
C) Promote glycogen storage
D) Inhibit glucose absorption
138. What is the function of oxytocin during childbirth?
A) Stimulates uterine contractions
B) Stimulates milk production
C) Inhibits milk release
D) Increases blood pressure
139. Which of the following hormones regulates the body’s response to stress?
A) Cortisol
B) Insulin
C) Prolactin
D) Melatonin
140. Which of the following hormones is produced by the pineal gland and helps regulate sleep-wake cycles?
A) Melatonin
B) Oxytocin
C) Serotonin
D) Cortisol
141. Which of the following hormones is produced by the hypothalamus and stimulates the release of antidiuretic hormone (ADH) from the pituitary gland?
A) Oxytocin
B) Growth hormone-releasing hormone
C) Thyroid-stimulating hormone
D) Gonadotropin-releasing hormone
142. Which of the following is a function of the hormone aldosterone?
A) Increases sodium reabsorption in the kidneys
B) Increases potassium excretion in the kidneys
C) Regulates water balance
D) All of the above
143. Which of the following is produced by the ovaries and is responsible for the development of female secondary sex characteristics?
A) Estrogen
B) Testosterone
C) Progesterone
D) Prolactin
144. Which of the following is a function of the hormone cortisol during stress?
A) Decreases blood sugar levels
B) Stimulates protein synthesis
C) Increases blood glucose levels
D) Stimulates the release of insulin
145. Which of the following hormones is produced by the adrenal cortex and regulates the body’s metabolism and immune response?
A) Cortisol
B) Insulin
C) Glucagon
D) Epinephrine
146. Which hormone is released by the pancreas to lower blood sugar levels?
A) Glucagon
B) Insulin
C) Epinephrine
D) Aldosterone
147. What is the primary role of thyroid-stimulating hormone (TSH)?
A) Stimulate the thyroid gland to release thyroid hormones
B) Stimulate the adrenal glands to release cortisol
C) Stimulate the pancreas to release insulin
D) Regulate calcium levels in the blood
148. Which hormone plays a key role in the body’s response to acute stress, often referred to as the fight-or-flight response?
A) Cortisol
B) Adrenaline (Epinephrine)
C) Insulin
D) Estrogen
149. Which of the following hormones is responsible for increasing blood glucose levels?
A) Glucagon
B) Insulin
C) Prolactin
D) Oxytocin
150. Which of the following hormones promotes the development of male secondary sex characteristics?
A) Estrogen
B) Testosterone
C) Progesterone
D) Growth hormone
151. Which of the following is produced by the adrenal cortex and helps regulate sodium and potassium balance?
A) Cortisol
B) Aldosterone
C) Epinephrine
D) Prolactin
152. Which of the following hormones is primarily responsible for regulating growth and development?
A) Growth hormone
B) Insulin
C) Cortisol
D) Thyroxine
153. Which of the following hormones is produced by the hypothalamus and stimulates the release of thyroid hormones from the thyroid gland?
A) Thyrotropin-releasing hormone
B) Corticotropin-releasing hormone
C) Prolactin-inhibiting hormone
D) Gonadotropin-releasing hormone
154. Which of the following hormones is produced by the thyroid gland and helps regulate metabolism?
A) Thyroxine (T4)
B) Epinephrine
C) Prolactin
D) Insulin
155. What is the primary function of the hormone oxytocin?
A) Stimulate uterine contractions during childbirth
B) Regulate water balance in the body
C) Stimulate milk production
D) Promote the release of growth hormone
156. Which of the following hormones is secreted by the pancreas and regulates blood sugar levels?
A) Insulin
B) Glucagon
C) Cortisol
D) Both A and B
157. Which gland produces adrenaline and noradrenaline?
A) Thyroid gland
B) Adrenal gland
C) Pineal gland
D) Pituitary gland
158. Which of the following hormones is involved in the regulation of the menstrual cycle and is produced by the ovaries?
A) Estrogen
B) Testosterone
C) Progesterone
D) Cortisol
159. Which hormone produced by the adrenal glands is essential for the body’s response to stress?
A) Thyroxine
B) Cortisol
C) Insulin
D) Glucagon
160. What is the role of the parathyroid hormone (PTH)?
A) Increase calcium concentration in the blood
B) Decrease calcium concentration in the blood
C) Increase glucose concentration in the blood
D) Stimulate growth in children
161. Which of the following hormones is released by the pituitary gland and stimulates the adrenal glands to release cortisol?
A) Thyroid-stimulating hormone
B) Prolactin
C) Adrenocorticotropic hormone
D) Follicle-stimulating hormone
162. Which hormone is produced by the thyroid and regulates calcium balance by reducing blood calcium levels?
A) Calcitonin
B) Parathyroid hormone
C) Thyroxine
D) Growth hormone
163. Which of the following is the main function of glucagon?
A) Increase blood sugar levels
B) Decrease blood sugar levels
C) Stimulate milk production
D) Regulate calcium balance
164. Which of the following hormones is secreted by the pituitary gland to regulate the growth of bones and tissues?
A) Growth hormone
B) Luteinizing hormone
C) Prolactin
D) Thyroid-stimulating hormone
165. What is the primary role of melatonin?
A) Regulate the sleep-wake cycle
B) Stimulate insulin release
C) Increase blood pressure
D) Regulate growth during childhood
166. Which of the following hormones is produced by the anterior pituitary and stimulates the secretion of thyroid hormones?
A) Thyroid-stimulating hormone
B) Luteinizing hormone
C) Follicle-stimulating hormone
D) Adrenocorticotropic hormone
167. Which of the following hormones is involved in regulating the body’s circadian rhythm?
A) Thyroxine
B) Melatonin
C) Oxytocin
D) Insulin
168. Which of the following hormones is responsible for regulating blood calcium levels?
A) Parathyroid hormone
B) Glucagon
C) Insulin
D) Cortisol
169. Which hormone is primarily responsible for the development of female secondary sexual characteristics?
A) Estrogen
B) Progesterone
C) Testosterone
D) Growth hormone
170. Which of the following hormones is produced by the pituitary gland and stimulates the production of milk after childbirth?
A) Prolactin
B) Oxytocin
C) Luteinizing hormone
D) Growth hormone
171. Which of the following hormones is involved in regulating water balance in the body and is produced by the posterior pituitary?
A) Prolactin
B) Antidiuretic hormone
C) Growth hormone
D) Oxytocin
172. Which of the following hormones is responsible for regulating metabolism and increasing energy production in cells?
A) Thyroxine
B) Insulin
C) Progesterone
D) Parathyroid hormone
173. Which hormone is produced by the ovaries and helps maintain pregnancy?
A) Estrogen
B) Progesterone
C) Prolactin
D) Luteinizing hormone
174. Which of the following hormones is responsible for stimulating the production of red blood cells?
A) Erythropoietin
B) Insulin
C) Growth hormone
D) Prolactin
175. Which of the following is the primary function of aldosterone?
A) Increase sodium retention by the kidneys
B) Increase calcium absorption in the intestines
C) Stimulate the release of insulin
D) Regulate stress responses
176. Which of the following hormones is produced by the testes and responsible for the development of male secondary sex characteristics?
A) Estrogen
B) Progesterone
C) Testosterone
D) Growth hormone
177. Which of the following hormones is responsible for the regulation of blood pressure through its effects on blood vessels and sodium retention?
A) Thyroxine
B) Cortisol
C) Aldosterone
D) Insulin
178. Which of the following hormones is secreted by the pituitary gland and stimulates the ovaries to produce estrogen?
A) Luteinizing hormone
B) Follicle-stimulating hormone
C) Thyroid-stimulating hormone
D) Prolactin
179. Which of the following hormones helps regulate the stress response and is produced by the adrenal cortex?
A) Thyroxine
B) Epinephrine
C) Cortisol
D) Melatonin
180. Which of the following is the primary function of the hormone epinephrine?
A) Regulate metabolism
B) Increase blood glucose levels
C) Stimulate the production of red blood cells
D) Stimulate growth in children