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Glucagon is synthesized by the ________ cells of the pancreas.

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Insulin shock occurs when there is


A) damage to pancreatic beta cells.
B) too much glucagon available.
C) a rapid fall in the blood sugar level.
D) overstimulation of alpha cells.
E) not enough glucagon available.

F) D) and E)
G) A) and B)

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A tumor in the adrenal cortex causes excessively high levels of aldosterone. The high aldosterone levels cause


A) hyponatremia.
B) acidosis.
C) hypokalemia.
D) hypocalcemia.
E) hyperkalemia.

F) A) and B)
G) D) and E)

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Parathyroid hormone (PTH)


A) tends to inhibit osteoclasts.
B) decreases blood calcium levels.
C) allows the kidneys to retain calcium.
D) increases calcium excretion by the intestine.
E) stimulates kidneys to excrete calcium.

F) B) and D)
G) A) and B)

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In the blood,


A) most T3 and T4 molecules are found bound to thyroxine-binding globulin (TBG) .
B) T3 and T4 are rapidly metabolized.
C) T3 is converted into T4.
D) T3 but not T4 is bound to TSH.
E) most thyroid hormones are transported in a free form.

F) C) and E)
G) A) and E)

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The endocrine glands located on top of the kidneys are the


A) thyroid glands.
B) vestibular glands.
C) adrenal glands.
D) parathyroid glands.
E) renal glands.

F) A) and B)
G) A) and C)

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The embryonic origin of the anterior pituitary gland is


A) epithelium from the oral cavity.
B) nervous tissue from the area of the hypothalamus.
C) an outpocket of the nasal cavity.
D) glandular tissue from the cerebrum.

E) None of the above
F) B) and D)

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The posterior pituitary


A) has a direct connection with neurons of the hypothalamus.
B) is controlled by releasing hormones produced in the hypothalamus.
C) produces hormones that regulate other endocrine glands.
D) stores lipotropins.
E) is not related to fluid balance in the body.

F) B) and E)
G) B) and D)

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Match the cell type with the hormone produced by that cell type. -follicular cells of thyroid


A) mineralocorticoids
B) PTH
C) insulin
D) ADH
E) T₃

F) A) and B)
G) B) and D)

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The hypothalamus


A) rests in the sella turcica.
B) is also called the neurohypophysis.
C) is located inferior to the pituitary gland.
D) regulates the secretory activity of the pituitary gland.
E) is located superior to the thalamus.

F) A) and B)
G) A) and C)

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Read the two statements and use the following key to answer them. -(1) metabolic rate if thyroid hormones are under secreted (2) metabolic rate if thyroid hormones are over secreted


A) Mark this if the first item is greater than the second item.
B) Mark this if the first item is less than the second item.
C) Mark this if the first is equal or nearly equal to the second item.

D) All of the above
E) B) and C)

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Match the cell type with the hormone produced by that cell type. -neurosecretory cells


A) mineralocorticoids
B) PTH
C) insulin
D) ADH
E) T₃

F) A) and B)
G) B) and D)

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Which pancreatic cells is correctly matched to its secretion?


A) beta cells - digestive enzymes
B) acini cells - somatostatin
C) alpha cells - glucagon
D) delta cells - insulin

E) B) and C)
F) None of the above

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In gluconeogenesis


A) glucose is used for energy.
B) glycogen is broken down to glucose.
C) glucose is formed from amino acids.
D) glycogen is synthesized from excess glucose.
E) glucose is formed from fatty acids.

F) A) and D)
G) C) and D)

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The primary stimulus for release of adrenal medullary hormones comes from


A) the kidneys.
B) aldosterone.
C) the anterior pituitary.
D) the parasympathetic nervous system.
E) the sympathetic nervous system.

F) B) and D)
G) B) and E)

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ADH (antidiuretic hormone) is synthesized by the ____ while TSH (thyroid-stimulating hormone) is synthesized by the ____.


A) kidney; thyroid
B) posterior pituitary; thyroid
C) hypothalamus; anterior pituitary
D) kidney; anterior pituitary
E) posterior pituitary; hypothalamus

F) A) and E)
G) A) and D)

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Which hormone is required for ovulation and formation of the corpus luteum?


A) FSH (follicle-stimulating hormone)
B) LH (luteinizing hormone)
C) TSH (thyroid-stimulating hormone)
D) prolactin
E) MSH (melanocyte-stimulating hormone)

F) A) and D)
G) D) and E)

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Arrange the following in the sequence in which releasing hormones travel through them. (1) secondary capillary network (2) primary capillary network (3) hypothalamohypophysial portal vessels


A) 1, 2, 3
B) 3, 2, 1
C) 2, 3, 1
D) 3, 1, 2
E) 2, 1, 3

F) C) and D)
G) A) and E)

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Anterior pituitary hormones


A) are all proteins or glycoproteins.
B) are transported in the hypothalamohypophysial portal system.
C) bind to intracellular receptor molecules.
D) have a half-life of hours.
E) are released as a direct result of action potentials.

F) C) and D)
G) A) and C)

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Which of the following is NOT an example of an autocrine chemical messenger?


A) prostacyclins
B) thromboxanes
C) leukotrienes
D) endorphins

E) A) and C)
F) A) and D)

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