Question 1

What is the cascade of events that leads to the stress response of the adrenal glands?

Accepted Answer

A)  hypothalamus produces ACTH-releasing hormone - anterior pituitary is stimulated to produce ACTH - adrenal cortex stimulated to produce glucocorticoids (regulate metabolism and sugar level) 
B)  hypothalamus produces ACTH-releasing hormone - anterior pituitary is stimulated to produce ACTH - adrenal cortex secretes epinephrine and norepinephrine (regulate metabolism and sugar level) 
C)  anterior pituitary produces ACTH - hypothalamus releases ACTH-releasing hormone - adrenal cortex hormones then produced
D)  adrenal cortex secretes hormones - anterior pituitary secretes ACTH - hypothalamus secretes ACTH-releasing hormone
E)  adrenal cortex secretes hormones - hypothalamus secretes ACTH-releasing hormone - anterior pituitary releases ACTHF) None of the above
G) A) and B)

Question 2

Which of the following hormones is (are) NOT a product of the anterior lobe of the pituitary?

Accepted Answer

A)  growth hormone
B)  antidiuretic hormone
C)  gonadotropic hormones
D)  thyroid-stimulating hormoneE) All of the above
F) B) and C)

Question 3

Which of the following factors can lead to diabetes insipidus?

Accepted Answer

A)  Abnormally low level of ADH secretion from the hypothalamus which results in low levels of ADH in the posterior pituitary,preventing the reabsorption of water in the kidneys.
B)  Abnormally high level of ADH secretion from the hypothalamus which results in low levels of ADH in the posterior pituitary,preventing the reabsorption of water in the kidneys.
C)  Abnormally low level of ADH secretion from the hypothalamus which results in high levels of ADH in the posterior pituitary,increasing the reabsorption of water in the kidneys.
D)  Abnormally low level of oxytocin secretion from the hypothalamus which results in low levels of ADH in the posterior pituitary,preventing the reabsorption of water in the kidneys.
E)  Abnormally low level of ADH secretion from the hypothalamus which results in low levels of ADH in the posterior pituitary,increasing the reabsorption of water in the kidneys.F) C) and D)
G) A) and D)

Question 4

How are hormone levels regulated?

Accepted Answer

A)  An endocrine gland can respond to the blood level of the hormone it produces.
B)  A hormone can trigger a second gland to secrete a hormone that dampens production of the first hormone.
C)  A second contrary hormone can counteract the effect of the first hormone.
D)  A product can trigger hormone production; the hormone can then reduce the amount of product which in turn reduces the level of hormone.
E)  All of the choices are correct.F) B) and C)
G) D) and E)

Question 5

Which of the following hormone is produced by the anterior pituitary gland that regulates the production of cortisol?

Accepted Answer

A)  Adrenocorticotropic hormone
B)  thyroxine
C)  gonadotropic hormones
D)  prolactin
E)  melanocyte-stimulating hormoneF) C) and D)
G) B) and E)

Question 6

Which endocrine gland is directly responsible for the secretion of the glucocorticoid cortisol?

Accepted Answer

A)  adrenal cortex
B)  hypothalamus
C)  adrenal medulla
D)  anterior pituitary
E)  thyroid glandF) D) and E)
G) A) and D)

Question 7

Which of the following mineralcorticoid is responsible for regulating blood volume and pressure?

Accepted Answer

A)  aldosterone
B)  cortisol
C)  T3
D)  T4
E)  CalcitoninF) A) and D)
G) A) and E)

Question 8

Which of the following statements about hormones is correct?

Accepted Answer

A)  Non-steroid hormones activate an enzyme cascade.
B)  Steroid hormones regulate the production of a particular protein.
C)  Non-steroid hormones are either amino acids,peptides,or proteins.
D)  Steroid hormones all have four carbon rings with different side chains.
E)  All of the choices are correct.F) A) and D)
G) A) and E)

Question 9

The posterior pituitary gland secretes all of the following EXCEPT

Accepted Answer

A)  oxytocin.
B)  ADH.
C)  prolactin.
D)  None of the choices are correct.E) B) and D)
F) None of the above

Question 10

Steroid hormones act more slowly and maintain their effects longer than peptide hormones.

Accepted Answer

A) True 
 B)False

Question 11

What gland,located in the brain,produces melatonin?

Accepted Answer

A)  pancreas
B)  pineal gland
C)  adrenal gland
D)  thyroid gland
E)  pituitaryF) B) and D)
G) A) and D)

Question 12

The same hormone has considerably different effects in different species.The hormone thyroxin in humans stimulates metabolism,but in frogs it induces metamorphosis from tadpole to adult frog.This indicates that

Accepted Answer

A)  the target tissues have evolved different responses.
B)  metamorphosis is caused by a change in body metabolism.
C)  the organisms have absolutely no evolutionary relationship.
D)  the chemical composition of the hormone is actually slightly different.
E)  the origin of the hormone makes a difference in the effect the hormone has on target tissues.F) C) and D)
G) A) and B) A

Question 13

Which is the correct order of hormone secretion in response to inflammation?

Accepted Answer

A)  The hypothalamus stimulates the anterior pituitary to produce ACTH which causes the adrenal cortex to secrete cortisol.
B)  The hypothalamus stimulates the anterior pituitary to produce ACTH which causes the adrenal cortex to secrete aldosterone.
C)  The anterior pituitary stimulates the hypothalamus to produce ACTH which causes the adrenal cortex to secrete cortisol.
D)  The hypothalamus stimulates the anterior pituitary to produce ANH which causes the adrenal cortex to secrete cortisol.
E)  The hypothalamus stimulates the anterior pituitary to produce ANH which causes the adrenal cortex to secrete aldosterone.F) C) and E)
G) C) and D)

Question 14

The over secretion of ______ by the thyroid gland can result in _______________.

Accepted Answer

A)  T3,hyperthyroidism
B)  T3,hypothyroidism
C)  T4,hypothyroidism
D)  calcitonin,hyperthyroidism
E)  parathyroid hormone,Grave's diseaseF) C) and D)
G) A) and E)

Question 15

Which of the following statements about hormones is NOT true?

Accepted Answer

A)  Hormones are secreted into the bloodstream.
B)  Hormones are released from exocrine glands.
C)  Hormones may be classified as peptides or steroids.
D)  Hormones usually affect a target organ.
E)  Cells that react to a hormone have specific receptors for that hormone.F) A) and C)
G) B) and E) B

Question 16

Hypoparathyroidism leads to a dramatic drop in blood calcium,which causes

Accepted Answer

A)  lethargy and hair loss.
B)  tetany (convulsions) .
C)  sleepiness.
D)  mental retardation.
E)  cretinism.F) B) and D)
G) All of the above

Question 17

What is the mode of action of hormones?

Accepted Answer

A)  Peptide hormones bind to cell-surface receptors and result in the activation of enzymes.
B)  Steroid hormones enter the cell,usually bind to receptors in the nucleus and result in the activation of certain genes.
C)  Hormones are actually precursors or raw materials that are naturally converted to end products by the correct target cell.
D)  Hormones are chunks of DNA that are sent out to be incorporated into target cells and become activated to produce hormone products.
E)  Peptide hormones bind to cell-surface receptors and result in the activation of enzymes,while steroid hormones enter the cell,usually bind to receptors in the nucleus and result in the activation of certain genes.F) None of the above
G) C) and E)

Question 18

What is a common function of T3 and T4?

Accepted Answer

A)  Stimulate cells to metabolize faster.
B)  Muscle contraction.
C)  Cause the blood calcium to increase.
D)  Blood phosphate levels decrease.
E)  Cause an increase in the deposition of calcium in the bones.F) B) and D)
G) All of the above

Question 19

Which of the following characteristics or actions are associated with a steroid hormone?

Accepted Answer

A)  cyclic AMP
B)  the second messenger
C)  production of new proteins
D)  activation of proteins present in an inactive form
E)  binding of a protein to a surface receptor on the plasma membraneF) C) and D)
G) A) and D) C

Question 20

The pituitary gland controls the hypothalamus by the production of antidiuretic hormones.

Accepted Answer

A) True 
 B)False

Exam 40: Hormones and Endocrine Systems

What is the cascade of events that leads to the stress response of the adrenal glands?

Correct AnswerverifiedShow Answer

Which of the following hormones is (are) NOT a product of the anterior lobe of the pituitary?

Correct AnswerverifiedShow Answer

Which of the following factors can lead to diabetes insipidus?

Correct AnswerverifiedShow Answer

How are hormone levels regulated?

Correct AnswerverifiedShow Answer

Which of the following hormone is produced by the anterior pituitary gland that regulates the production of cortisol?

Correct AnswerverifiedShow Answer

Which endocrine gland is directly responsible for the secretion of the glucocorticoid cortisol?

Correct AnswerverifiedShow Answer

Which of the following mineralcorticoid is responsible for regulating blood volume and pressure?

Correct AnswerverifiedShow Answer

Which of the following statements about hormones is correct?

Correct AnswerverifiedShow Answer

The posterior pituitary gland secretes all of the following EXCEPT

Correct AnswerverifiedShow Answer

Steroid hormones act more slowly and maintain their effects longer than peptide hormones.

Correct AnswerverifiedShow Answer

What gland,located in the brain,produces melatonin?

Correct AnswerverifiedShow Answer

The same hormone has considerably different effects in different species.The hormone thyroxin in humans stimulates metabolism,but in frogs it induces metamorphosis from tadpole to adult frog.This indicates that

Correct AnswerverifiedA

Which is the correct order of hormone secretion in response to inflammation?

Correct AnswerverifiedShow Answer

The over secretion of ______ by the thyroid gland can result in _______________.

Correct AnswerverifiedShow Answer

Which of the following statements about hormones is NOT true?

Correct AnswerverifiedB

Hypoparathyroidism leads to a dramatic drop in blood calcium,which causes

Correct AnswerverifiedShow Answer

What is the mode of action of hormones?

Correct AnswerverifiedShow Answer

What is a common function of T3 and T4?

Correct AnswerverifiedShow Answer

Which of the following characteristics or actions are associated with a steroid hormone?

Correct AnswerverifiedC

The pituitary gland controls the hypothalamus by the production of antidiuretic hormones.

Correct AnswerverifiedShow Answer

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A

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The over secretion of by the thyroid gland can result in _________.

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B

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What is a common function of T₃ and T₄?

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C

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