Endocrine System Practice Questions
Secretion of which of the following hormones is stimulated by Gonadotropin-releasing hormone (GnRH)? A) Luteinizing hormone (LH) B) Thyrotropin (TSH) C) Growth hormone (GH) D) Adrenocorticotropic hormone (ACTH)
A) Luteinizing hormone (LH) * & FSH
Which of the following secretes epinephrine (Epi)? A) Adrenal cortex B) Adrenal medulla C) Heart D) Kidneys E) Pancreas
B) Adrenal medulla
Which of the following hormones regulates water and electrolyte balance? A) Thyroxine (T4) B) Aldosterone C) Testosterone D) Luteinizing hormone (LH) E) Melatonin
B) Aldosterone
23. Bile secretion from the gallbladder is an example of: A) Endocrine secretion B) Exocrine secretion C) Antagonism D) Synergism E) Permissiveness
B) Exocrine secretion
Secretion of growth hormone (GH) is stimulated by: A) Gonadotropin-releasing hormone (GnRH) B) Growth hormone-releasing hormone (GHRH) C) Corticotropin-releasing hormone (CRH) D) Thyrotropin-releasing hormone (TRH)
B) Growth hormone-releasing hormone (GHRH)
Which of the following hormones stimulates the secretion of aldosterone? A) Cortisol B) Insulin C) Adrenocorticotropic hormone (ACTH) D) Atrial natriuretic peptide (ANP)
C) Adrenocorticotropic hormone (ACTH)
A 24-year-old male is brought to the emergency department by his friends. He is not able to stand on his feet without the help of his friends who tell the ER nurse they have been drinking alcoholic beverages at a party the whole night. Upon questioning, the patient has slurred speech and the ER staff cannot make sense of what he says. His blood pressure is 100/70, his temperature is 98.1 °F, and his pulse is 88/min. Which of the following hormones is found to be in a lower concentration than normal in his blood? A) Cortisol B) Aldosterone C) Antidiuretic hormone D) Renin E) ANP
C) Antidiuretic hormone
Pancreas has: A) Purely endocrine functions B) Purely exocrine functions C) Both endocrine & exocrine functions
C) Both endocrine & exocrine functions
Vasopressin: (ADH) A) Increases sodium reabsorption in the kidneys B) Increases potassium excretion in the kidneys C) Increases water reabsorption in the kidneys D) Increases water excretion in the kidneys
C) Increases water reabsorption in the kidneys
25. A 37-year-old female is diagnosed with Grave's disease. Which of the following symptoms/findings is she most likely having? A) Constipation B) Weight gain C) Rapid irregular heart rate D) Increased sleepiness E) Hair loss
C) Rapid irregular heart rate
13. A 25-year-old female comes to the clinic complaining of increased tiredness and sleepiness throughout the day over the past 7 months. She also mentions that she has gained 12 pounds during this period. Other symptoms include constipation, hair thinning, and dry skin. Which of the following hormones would you expect to be in a higher than normal concentration in this patient? A) Calcitonin B) T3/T4 C) TSH D) ACTH E) PTH
C) TSH
Which of the following hormones is NOT secreted from the thyroid gland? A) T3 B) Thyroxine C) Thyrotropin D) T4 E) Calcitonin
C) Thyrotropin - TSH
Which hormone is NOT secreted by the anterior pituitary gland? A) Follicle-stimulating hormone (FSH) B) Adrenocorticotropic hormone (ACTH) C) Thyrotropin-releasing hormone (TRH) D) Prolactin E) Growth hormone (GH)
C) Thyrotropin-releasing hormone (TRH)
An elderly patient hospitalized due to a cerebrovascular accident (stroke) is found to have a low blood sodium concentration. Which of the following endocrine glands is secreting a hormone to correct this abnormality? Which hormone would correct the abnormality? A) Adrenal medulla; cortisol B) Adrenal cortex; cortisol C) Adrenal medulla; aldosterone D) Adrenal cortex; aldosterone
D) Adrenal cortex; aldosterone
Parathyroid hormone (PTH): A) Increases blood potassium levels B) Increases blood phosphate levels C) Increases blood sodium levels D) Increases blood calcium levels
D) Increases blood calcium levels
24. The level of which of the following hormones is expected to increase after eating a banana split? A) Epinephrine B) Antidiuretic hormone C) Cortisol D) Insulin E) Glucagon
D) Insulin
The body's sleep/wake cycle is believed to be triggered by: A) Epinephrine B) Norepinephrine C) Cortisol D) Melatonin E) Melanin
D) Melatonin
Which of the following hormones has anti-inflammatory effects? A) Epinephrine B) Glucagon C) Insulin D) Thyroid hormones E) Cortisol
E) Cortisol
9. A patient comes to the clinic complaining of increased tiredness and fatigue over the last three months. Physical examination is unremarkable except for muscle weakness and high blood pressure. He has a blood pressure of 160/100. Blood tests are obtained in the office and the results return the next day showing: Na+ 155 normal: 135 - 147 K+ 3.1 normal: 3.5 - 5.0 Cl- 101 normal: 97 - 107 Ca2+ 9.0 normal: 8.4 - 10.2 Glucose 81 normal: 70 - 100 What is the most likely diagnosis based on the patient's symptoms and laboratory results? A) Hypercalcemia B) Hypothyroidism C) Hyposecretion of cortisol D) Hypersecretion of cortisol E) Hypersecretion of aldosterone
E) Hypersecretion of aldosterone
22. Corticotropin is secreted by the: A) Neurohypophysis B) Adenohypophysis C) Adrenal cortex D) Adrenal medulla E) Hypothalamus
E) Hypothalamus
Which of the following glands produces anti-diuretic hormone (ADH)? A) Hypothalamus B) Thalamus C) Epithalamus D) Anterior Pituitary Gland E) Posterior Pituitary gland
a) Hypothalamus
Which of the following hormones stimulates milk ejaculation (let-down reflex) form mammary glands? A) Anti-diuretic hormone (ADH) B) Oxytocin C) Prolactin D) Growth Hormone (GH)
b) Oxytocin
Which of the following hormones stimulates mill production in mammary glands? A) Thyrotropin-releasing hormone (TRH) B) Oxytocin C) Prolactin D) Dopamine E) Vasopression
c) Prolactin
Which of the following hormones has a hyperglycemic effect (raises blood sugar)? A) Epinephrine B) Cortisol C) B & C D) A, B, & C
d) A, B, & C
Which of the following glands secretes anti-diuretic hormone (ADH)? A) Hypothalamus B) Thalamus C) Epithalamus D) Adenohypophysis E) Neurohypophsis
e) Neurohypophsis
