Question 1

Epinephrine is said to have a glucose-sparing effect.

Accepted Answer

A) True 
 B)False

Question 2

The posterior pituitary secretes _________.

Accepted Answer

A)   prolactin (PRL) 
B)   adrenocorticotropic hormone (ACTH) 
C)   oxytocin (OT) 
D)   thyroid hormone (TH) 
E)   growth hormone (GH) F) A) and E)
G) B) and D)

Question 3

Neither follicle stimulating (FSH) hormone nor testosterone alone can stimulate significant sperm production,whereas when they act together,the testes produce some 300,000 sperm per minute.This is an example of which principle regarding hormones?

Accepted Answer

A)   Hormone clearance
B)   The cascade effect
C)   The synergistic effect
D)   The permissive effect
E)   The antagonistic effectF) None of the above
G) C) and D)

Question 4

The __________ secrete(s) a hormone as a response to hypocalcemia.

Accepted Answer

A)   thymus
B)   thyroid gland
C)   parathyroid glands
D)   pineal gland
E)   pituitary glandF) B) and C)
G) B) and E)

Question 5

Many hours after a meal,alpha (α) cells in the pancreatic islets secrete _________,which _________ blood glucose.

Accepted Answer

A)   glucagon;lowers
B)   glucagon;raises
C)   insulin;lowers
D)   insulin;raises
E)   glucocorticoids;raisesF) A) and B)
G) A) and E)

Question 6

Which of the following effects on a gland can be caused by a tumor?

Accepted Answer

A)   Hypersecretion only
B)   Hyposecretion only
C)   Hyposecretion and hypersecretionD) A) and B)
E) A) and C)

Question 7

Cholesterol is essential for the synthesis of steroid hormones.

Accepted Answer

A) True 
 B)False

Question 8

The nervous system reacts to stimuli __________ compared to the endocrine system,adapts __________ compared to the endocrine system,and has __________ effects compared to the endocrine system.

Accepted Answer

A)   slowly;slowly;widespread
B)   quickly;slowly;specific
C)   quickly;quickly;widespread
D)   quickly;quickly;specific
E)   slowly;quickly;specificF) A) and C)
G) A) and E)

Question 9

The __________ secrete(s) __________,which promotes Na+ and water retention.

Accepted Answer

A)   adrenal medulla;epinephrine
B)   pancreas;cortisol
C)   kidneys;corticosterone
D)   adrenal cortex;aldosterone
E)   thyroid;calcitoninF) All of the above
G) A) and E)

Question 10

Negative feedback inhibition occurs when __________.

Accepted Answer

A)   thyrotropin-releasing hormone (TRH) targets the anterior pituitary
B)   thyrotropin-releasing hormone (TRH) causes the anterior pituitary to release thyroid-stimulating hormone (TSH) 
C)   thyrotropin-releasing hormone (TRH) targets the thyroid gland
D)   thyroid-stimulating hormone (TSH) targets the thyroid gland
E)   thyroid hormone (TH) targets the anterior pituitaryF) A) and B)
G) A) and C)

Question 11

Target organs most often regulate the pituitary gland via _________.

Accepted Answer

A)   negative feedback inhibition
B)   positive feedback inhibition
C)   up-regulation
D)   down-regulation
E)   antagonistic regulationF) C) and D)
G) B) and D) A

Question 12

Addison disease is a consequence of a tumor of the adrenal medulla.

Accepted Answer

A) True 
 B)False

Question 13

Worrying about your upcoming exam in history class is a valid form of stress.

Accepted Answer

A) True 
 B)False

Question 14

The infundibulum is a ___________.

Accepted Answer

A)   mass of endocrine and neural cells
B)   portal system between the hypothalamus and the pituitary gland
C)   bulky nucleus composed of the paraventricular nucleus and the supraoptic nucleus
D)   depression of the sphenoid bone that protects the pituitary gland
E)   projection of the hypothalamus from which the pituitary gland hangsF) C) and D)
G) A) and E)

Question 15

Which of the following is the last step in the sequence of events happening when cyclic AMP acts as a second messenger?

Accepted Answer

A)   G protein activates adenylate cyclase
B)   cAMP activates protein kinases
C)   Adenylate cyclase produces cAMP
D)   G protein is activated by the binding of a hormone to the receptor
E)   Enzymes are activated or deactivated by the action of protein kinasesF) C) and D)
G) A) and D) E

Question 16

Which of the following is not secreted by the pancreas?

Accepted Answer

A)   Glucagon
B)   Insulin
C)   Gastrin
D)   Somatostatin (growth hormone-inhibiting hormone) 
E)   Somatotropin (growth hormone) F) B) and C)
G) A) and C)

Question 17

The resistance stage in the general adaptation syndrome (stress response) is dominated by __________.

Accepted Answer

A)   cortisol
B)   epinephrine
C)   norepinephrine
D)   angiotensin
E)   aldosteroneF) C) and E)
G) D) and E)

Question 18

Which of the following statements about diabetes mellitus is false?

Accepted Answer

A)   The body produces autoantibodies that destroy the pancreatic beta cells in type I DM.
B)   Target cells are unresponsive to insulin in type II DM.
C)   Both type I and type II DM are characterized by lack of,or low levels of,insulin.
D)   Diabetic neuropathy is a common long term effect of DM.
E)   Type II DM is more common than type I DM.F) B) and E)
G) A) and B)

Question 19

Which hormone stimulates glucocorticoid secretion?

Accepted Answer

A)   GHRH
B)   GHIH
C)   ACTH
D)   CRH
E)   TSHF) C) and E)
G) B) and C) C

Question 20

Which of the following is the correct abbreviation for the hormone that stimulates the anterior pituitary to secrete ACTH?

Accepted Answer

A)   CRH
B)   GHRH
C)   GHIH
D)   APRH
E)   TRHF) A) and C)
G) All of the above

Exam 17: The Endocrine System

Epinephrine is said to have a glucose-sparing effect.

Correct AnswerverifiedShow Answer

The posterior pituitary secretes _________.

Correct AnswerverifiedShow Answer

Neither follicle stimulating (FSH) hormone nor testosterone alone can stimulate significant sperm production,whereas when they act together,the testes produce some 300,000 sperm per minute.This is an example of which principle regarding hormones?

Correct AnswerverifiedShow Answer

The __________ secrete(s) a hormone as a response to hypocalcemia.

Correct AnswerverifiedShow Answer

Many hours after a meal,alpha (α) cells in the pancreatic islets secrete _________,which _________ blood glucose.

Correct AnswerverifiedShow Answer

Which of the following effects on a gland can be caused by a tumor?

Correct AnswerverifiedShow Answer

Cholesterol is essential for the synthesis of steroid hormones.

Correct AnswerverifiedShow Answer

The nervous system reacts to stimuli __________ compared to the endocrine system,adapts __________ compared to the endocrine system,and has __________ effects compared to the endocrine system.

Correct AnswerverifiedShow Answer

The __________ secrete(s) __________,which promotes Na+ and water retention.

Correct AnswerverifiedShow Answer

Negative feedback inhibition occurs when __________.

Correct AnswerverifiedShow Answer

Target organs most often regulate the pituitary gland via _________.

Correct AnswerverifiedA

Addison disease is a consequence of a tumor of the adrenal medulla.

Correct AnswerverifiedShow Answer

Worrying about your upcoming exam in history class is a valid form of stress.

Correct AnswerverifiedShow Answer

The infundibulum is a ___________.

Correct AnswerverifiedShow Answer

Which of the following is the last step in the sequence of events happening when cyclic AMP acts as a second messenger?

Correct AnswerverifiedE

Which of the following is not secreted by the pancreas?

Correct AnswerverifiedShow Answer

The resistance stage in the general adaptation syndrome (stress response) is dominated by __________.

Correct AnswerverifiedShow Answer

Which of the following statements about diabetes mellitus is false?

Correct AnswerverifiedShow Answer

Which hormone stimulates glucocorticoid secretion?

Correct AnswerverifiedC

Which of the following is the correct abbreviation for the hormone that stimulates the anterior pituitary to secrete ACTH?

Correct AnswerverifiedShow Answer

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Many hours after a meal,alpha (α) cells in the pancreatic islets secrete _,which _ blood glucose.

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The nervous system reacts to stimuli compared to the endocrine system,adapts compared to the endocrine system,and has __ effects compared to the endocrine system.

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The secrete(s) ,which promotes Na⁺ and water retention.

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A

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E

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C

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