Question 1

Which of these hormone pairs have antagonistic (opposite) effects?

Accepted Answer

A)  Calcitonin and parathyroid hormone
B)  Thyroxine and triiodothyronine
C)  Oxytocin and follicle-stimulating hormone
D)  Melatonin and insulin
E)  Antidiuretic hormone and growth hormoneF) All of the above
G) A) and B)

Question 2

Where are the target cells for antidiuretic hormone?

Accepted Answer

A)  Adrenal cortex and thyroid gland
B)  Kidney tubules and smooth muscle of arteriole walls
C)  Ovaries and testes
D)  Smooth muscle of urinary bladder
E)  Smooth muscle of male reproductive tractF) C) and E)
G) B) and E)

Question 3

Where is the pituitary gland located?

Accepted Answer

A)  Within the sella turcica of the sphenoid bone
B)  Between the cerebrum and cerebellum,inferior to the occipital lobe
C)  On the posterior surface of the thyroid gland
D)  On the tracheal surface,inferior to the larynx
E)  Within the third ventricle of the brainF) A) and B)
G) A) and C)

Question 4

-This figure shows an example of regulation of hormone secretion by a negative feedback loop.The large box labeled 1 represents the initial stimulus.What hormones are represented by the small boxes labeled a,b,and c?

Accepted Answer

A)  a = TSH,b = TRH,c = TH
B)  a = TIH,b = TSH,c = TH
C)  a = TRH,b = TSH,c = TIH
D)  a = TRH,b = TSH,c = TH
E)  a = TSH,b = TH,c = TRHF) C) and D)
G) B) and C)

Question 5

Excessive secretion of growth hormone in adults can cause

Accepted Answer

A)  Graves disease.
B)  acromegaly.
C)  pituitary gigantism.
D)  pituitary dwarfism.
E)  Cushing syndrome.F) All of the above
G) C) and D)

Question 6

Which are target organs for parathyroid hormone (PTH) ?

Accepted Answer

A)  Bone and muscle
B)  Stomach and large intestine
C)  Heart and liver
D)  Bone and kidney
E)  Skin and thyroid glandF) B) and D)
G) A) and D)

Question 7

Which hormone induces its target cells to take up glucose,thereby lowering blood glucose levels?

Accepted Answer

A)  Pancreatic polypeptide
B)  Somatostatin
C)  Glucagon
D)  Insulin
E)  SomatotropinF) A) and E)
G) None of the above

Question 8

Which is not correct regarding the posterior pituitary?

Accepted Answer

A)  It is derived from nervous tissue
B)  It is connected to the hypothalamus by the hypothalamo-hypophyseal tract
C)  It is composed of the pars intermedia and the infundibular stalk
D)  It stores oxytocin and antidiuretic hormone
E)  It releases its hormones in response to nervous stimulationF) A) and B)
G) None of the above

Question 9

Growth hormone is secreted by __________ cells in the anterior pituitary.

Accepted Answer

A)  somatotropic
B)  gonadotropic
C)  thyrotropic
D)  mammotropic
E)  corticotropicF) B) and C)
G) A) and D)

Question 10

Which is not correct regarding the adrenal cortex?

Accepted Answer

A)  The adrenal cortex synthesizes over 25 different steroid hormones.
B)  Its yellow color is due to the presence of stored lipids.
C)  It consists of four different layers,or zones.
D)  Each zone of the adrenal cortex synthesizes a different group of hormones.
E)  Corticosteroid synthesis is controlled by the anterior pituitary.F) C) and E)
G) B) and C)

Question 11

Which endocrine gland is paired (meaning that there are two in the body) ?

Accepted Answer

A)  Pancreas
B)  Thyroid
C)  Pineal
D)  Thymus
E)  AdrenalF) C) and D)
G) A) and E)

Question 12

The anterior pituitary synthesizes and secretes ______ different hormones,while the posterior pituitary stores and secretes only ______ different hormones.

Accepted Answer

A)  9; 5
B)  6; 4
C)  7; 2
D)  8; 3
E)  8; 4F) D) and E)
G) B) and E)

Question 13

The primary androgen released by the testes is

Accepted Answer

A)  estrogen.
B)  inhibin.
C)  progesterone.
D)  testosterone.
E)  follicle-stimulating hormone.F) A) and B)
G) All of the above

Question 14

The secretory cells of the pineal gland are called

Accepted Answer

A)  melanocytes.
B)  pinealocytes.
C)  beta cells.
D)  chief cells.
E)  principal cells.F) C) and D)
G) A) and B)

Question 15

Which is not secreted by the kidneys?

Accepted Answer

A)  Renin
B)  Calcitriol
C)  Erythropoietin
D)  Inhibin
E)  All of the choices are correct.F) None of the above
G) B) and D)

Question 16

The hormone that increases the rate of glycogen breakdown and glucose release by the liver is

Accepted Answer

A)  insulin.
B)  glucagon.
C)  glucocorticoid.
D)  somatostatin.
E)  epinephrine.F) C) and D)
G) A) and B)

Question 17

Somatostatin suppresses the release of pancreatic polypeptide.

Accepted Answer

A) True 
 B)False

Question 18

Which is not correct regarding growth hormone (GH) ?

Accepted Answer

A)  GH affects most body cells.
B)  GH stimulates cell growth and mitosis.
C)  GH is also known as somatotropin.
D)  GH stimulates the kidney to secrete somatomedin.
E)  GH is a tropic hormone.F) A) and E)
G) B) and D)

Question 19

Which is not a cell type found in the pancreatic islets?

Accepted Answer

A)  Alpha cell
B)  Delta cell
C)  Beta cell
D)  F cell
E)  C cellF) C) and D)
G) D) and E)

Question 20

Epinephrine and norepinephrine are secreted by

Accepted Answer

A)  chromaffin cells.
B)  oxyphil cells.
C)  chief cells.
D)  C cells.
E)  gamma cells.F) None of the above
G) B) and C)

Exam 20: Endocrine System

Where are the target cells for antidiuretic hormone?

Correct AnswerverifiedShow Answer

Somatostatin suppresses the release of pancreatic polypeptide.

Correct AnswerverifiedShow Answer

The anterior pituitary synthesizes and secretes ______ different hormones,while the posterior pituitary stores and secretes only ______ different hormones.

Correct AnswerverifiedShow Answer

Growth hormone is secreted by __________ cells in the anterior pituitary.

Correct AnswerverifiedShow Answer

Which is not secreted by the kidneys?

Correct AnswerverifiedShow Answer

The primary androgen released by the testes is

Correct AnswerverifiedShow Answer

Which of these hormone pairs have antagonistic (opposite) effects?

Correct AnswerverifiedShow Answer

The hormone that increases the rate of glycogen breakdown and glucose release by the liver is

Correct AnswerverifiedShow Answer

-This figure shows an example of regulation of hormone secretion by a negative feedback loop.The large box labeled 1 represents the initial stimulus.What hormones are represented by the small boxes labeled a,b,and c?

Correct AnswerverifiedShow Answer

The secretory cells of the pineal gland are called

Correct AnswerverifiedShow Answer

Which are target organs for parathyroid hormone (PTH) ?

Correct AnswerverifiedShow Answer

Epinephrine and norepinephrine are secreted by

Correct AnswerverifiedShow Answer

Which is not a cell type found in the pancreatic islets?

Correct AnswerverifiedShow Answer

Which is not correct regarding the posterior pituitary?

Correct AnswerverifiedShow Answer

Where is the pituitary gland located?

Correct AnswerverifiedShow Answer

Excessive secretion of growth hormone in adults can cause

Correct AnswerverifiedShow Answer

Which is not correct regarding the adrenal cortex?

Correct AnswerverifiedShow Answer

Which is not correct regarding growth hormone (GH) ?

Correct AnswerverifiedShow Answer

Which endocrine gland is paired (meaning that there are two in the body) ?

Correct AnswerverifiedShow Answer

Which hormone induces its target cells to take up glucose,thereby lowering blood glucose levels?

Correct AnswerverifiedShow Answer

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The anterior pituitary synthesizes and secretes different hormones,while the posterior pituitary stores and secretes only different hormones.

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