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Which of the following is true?


A) The effects of epinephrine are long-lasting (days to weeks) .
B) Epinephrine increases blood pressure.
C) Epinephrine decreases heart rate.
D) Epinephrine increases GI tract activity.
E) Epinephrine is a chemical of the parasympathetic nervous system.

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

Correct Answer

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Which of the following would apply to the description of a thyroid follicle?


A) walls contain a single layer of parafollicular cells
B) center is called the isthmus
C) stores thyroid hormone
D) small capillary networks
E) spheres with walls of a single layer of cuboidal epithelial cells

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

Correct Answer

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Match the hormone with its appropriate function. -TSH


A) stimulates synthesis of thyroid hormones
B) increases adrenal cortex secretions
C) development of immune system
D) milk production
E) decreases blood calcium levels
,

F) B) and C)
G) B) and D)

Correct Answer

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Which of the following events occurs last?


A) Enzymes break down thyroglobulin to release T3 and T4.
B) T3 and T4 are stored within thyroid follicles.
C) Iodine is bound to tyrosine molecules of thyroglobulin.
D) Thyroglobulin is taken into thyroid cells by endocytosis.
E) Iodide is actively transported into thyroid follicle cells.

F) None of the above
G) A) and B)

Correct Answer

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Which gland does NOT produce reproductive hormones?


A) ovaries
B) testes
C) placenta
D) thyroid
E) pituitary gland

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

Correct Answer

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The rate of secretion of parathyroid hormone increases when


A) serum calcium levels increase.
B) serum calcium levels decrease.
C) serum levels of TSH decrease.
D) serum levels of TSH increase.
E) serum levels of sodium levels increase.

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

Correct Answer

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A decrease in blood volume will result in


A) decreased blood pressure.
B) increased ADH (antidiuretic hormone) secretion.
C) decreased urine volume.
D) All of the choices will occur.

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

Correct Answer

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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) A) and C)
G) All of the above

Correct Answer

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Hormone secretion by the anterior pituitary is controlled by


A) hormones of the thalamus.
B) neurohormones of the hypothalamus.
C) itself (anterior pituitary) because it is the master gland of the body.
D) the overall rate of metabolism.
E) neurons from the hypothalamus.

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

Correct Answer

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T3 and T4 are stored in the lumen of thyroid follicles as part of the _____ molecule.


A) thyrotropin
B) thyroid-stimulating hormone
C) thyroxine-binding protein
D) thyroglobulin
E) calcitonin

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

Correct Answer

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Match the hormone with its appropriate function. -thymosin


A) stimulates synthesis of thyroid hormones
B) increases adrenal cortex secretions
C) development of immune system
D) milk production
E) decreases blood calcium levels
,

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

Correct Answer

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Which of the following ions is necessary for thyroid hormone production?


A) potassium
B) calcium
C) iodine
D) sodium
E) chlorine

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

Correct Answer

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The zona fasciculata of the adrenal glands secretes the hormone


A) androstenedione.
B) aldosterone.
C) cortisol.
D) epinephrine.
E) ADH.

F) A) and E)
G) None of the above

Correct Answer

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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) C) and D)
G) C) and E)

Correct Answer

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Match the hormone with the best description. -relaxin


A) aids in spermatogenesis
B) inhibits FSH secretion
C) menstrual cycle
D) increases flexibility of connective tissue
,

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

Correct Answer

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Use the following information to determine the best answer. Normal serum levels for T3,T4,and TSH are as follows: Use the following information to determine the best answer. Normal serum levels for T<sub>3</sub>,T<sub>4</sub>,and TSH are as follows: Consider the following laboratory results of thyroid function and TSH levels. -Based on these laboratory results,which patient is most likely to have the following pathological condition: goiter due to iodine deficiency? Use the following information to determine the best answer. Normal serum levels for T<sub>3</sub>,T<sub>4</sub>,and TSH are as follows: Consider the following laboratory results of thyroid function and TSH levels. -Based on these laboratory results,which patient is most likely to have the following pathological condition: goiter due to iodine deficiency? Consider the following laboratory results of thyroid function and TSH levels. Use the following information to determine the best answer. Normal serum levels for T<sub>3</sub>,T<sub>4</sub>,and TSH are as follows: Consider the following laboratory results of thyroid function and TSH levels. -Based on these laboratory results,which patient is most likely to have the following pathological condition: goiter due to iodine deficiency? Use the following information to determine the best answer. Normal serum levels for T<sub>3</sub>,T<sub>4</sub>,and TSH are as follows: Consider the following laboratory results of thyroid function and TSH levels. -Based on these laboratory results,which patient is most likely to have the following pathological condition: goiter due to iodine deficiency? -Based on these laboratory results,which patient is most likely to have the following pathological condition: goiter due to iodine deficiency?

Correct Answer

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The major secretory products of the zona glomerulosa of the adrenal cortex are


A) glucocorticoids.
B) mineralocorticoids.
C) androgens.
D) catecholamines.
E) cortisol and ADH.

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

Correct Answer

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Use the following information to determine the best answer. Normal serum levels for T3,T4,and TSH are as follows: Use the following information to determine the best answer. Normal serum levels for T<sub>3</sub>,T<sub>4</sub>,and TSH are as follows: Consider the following laboratory results of thyroid function and TSH levels. -Based on these laboratory results,which patient is most likely to have the following pathological condition: proliferative tumor of anterior pituitary cells that produce TSH? Use the following information to determine the best answer. Normal serum levels for T<sub>3</sub>,T<sub>4</sub>,and TSH are as follows: Consider the following laboratory results of thyroid function and TSH levels. -Based on these laboratory results,which patient is most likely to have the following pathological condition: proliferative tumor of anterior pituitary cells that produce TSH? Consider the following laboratory results of thyroid function and TSH levels. Use the following information to determine the best answer. Normal serum levels for T<sub>3</sub>,T<sub>4</sub>,and TSH are as follows: Consider the following laboratory results of thyroid function and TSH levels. -Based on these laboratory results,which patient is most likely to have the following pathological condition: proliferative tumor of anterior pituitary cells that produce TSH? Use the following information to determine the best answer. Normal serum levels for T<sub>3</sub>,T<sub>4</sub>,and TSH are as follows: Consider the following laboratory results of thyroid function and TSH levels. -Based on these laboratory results,which patient is most likely to have the following pathological condition: proliferative tumor of anterior pituitary cells that produce TSH? -Based on these laboratory results,which patient is most likely to have the following pathological condition: proliferative tumor of anterior pituitary cells that produce TSH?

Correct Answer

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The connecting stalk between the hypothalamus and the pituitary gland is the


A) tectum.
B) cerebral peduncle.
C) hippocampus.
D) infundibulum.

E) A) and B)
F) A) and C)

Correct Answer

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Which of the following hormones is secreted by the anterior pituitary?


A) ADH (antidiuretic hormone)
B) TRH (thyrotropin-releasing hormone)
C) CRH (corticotropin-releasing hormone)
D) FSH (follicle-stimulating hormone)
E) oxytocin

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

Correct Answer

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