Final Exam Practice Questions Flashcards
Which hormone is secreted by the adrenal medulla?
a) thymosin
b) aldosterone
c) norenpinephrine
d) epenpinphrine
e) C and D
E
Which releases neurohormones?
a) posterior pituitary
b) anterior pituitary
c) adrenal cortex
d) A and C
e) B and C
a
ATCH from the pituitary stimulates secretion of cortisol. In this pathway ACTH is an:
A) agonist
B) antagonist
C) trophic hormone
D) positive feedback signal
E) negative feedback signal
C)
The hypothalamic-hypophyseal portal system is an
A) extensive network of neurons that provide short- loop negative feedback
B) extensive network of neurons that provide long loop negative feedback
C) modified capillary beds that transports hormones directly form the hypothalamus to the pituitary
D) modified capillary bed that transports hormones directly from the pituitary to the hypothalamus
C
Epinephrine on its own increases blood glucose by 5mg/100mL and glucagon alone by 8mg/100mL. If both hormones are present, blood glucose increases by 17mg/100mL. This an example of _____________ hormone interaction
A) permissive
B) synergistic
C) long-loop
D) short-loop
e) antagonistic
B
Thyroid hormones increase the number of receptors available for epenpinephrine on target cells. This is an example of an ___________ hormone interaction
a) permissive
b) synergistic
c) long-loop
d) short-loop
e) antagonistic
A
A person with primary hypercortisolism would have
a) increased cortisol, decreased ACTH and increased CRH
b) decreased cortisol, increased ACTH and increased CRH
c) increased cortisol, decreased ACTH, and decreased CRH
d) decreased cortisol, and decreased ACTH, and increased CRH
e) increased cortisol, normal ACTH and CRH
C
Hypercortisolism is also called
a) Addison’s disease
b) Cushing syndrome
c) aromegaly
d) expothalamos
e) cretinism
b
Cortisol is a useful therapeutic drug because it decreases
a) inflammation
b) transplant rejection
c) auto-immunity
d) all of the above
d
Which pairing is incorrect?
a) posterior pituitary; growth hormone
b) C cells; calcitonin
c) beta cells; insulin
d) follicular cells; thyroid hormone
e) zona fasiculata; glucocorticoids
a
Hormones secreted by the thyroid gland include:
a) calcitriol
b) PTH
c) ACTH
d) calcitonin
e) A and D
D
Table salt is fortified with an __________ needed for the synthesis of a _______
a) Na, cortisol
b) Cl; growth hormone
c) I; thyroid hormone
d) s; ACTH
e) K; Calcitriol
C
Hypothyroidism caused by a lack of iodine in the diet leads to
a) increased t3/t4, decreased TSH and increased TRH
b) decreased t3/t4, increased TSH and increased TRH
c) increased t3/t4, decreased TSH and decreased TRH
d) decreased t3/t4, decreased TSH and increased TRH
e) increased T3/T4, normal TSH and TRH
