sem 2 exam 3 lecture 22-24 clickers

Question 1

What condition is characterized with hyperkalemia, rise in RBC concentration, metabolic acidosis, and disturbances in melanin pigmentation

a. Cushing’s diseaase
b. hypothyroidism
c. hyperthroidism
d. Addison’s disease

Answer 1

Addison’s disease

Question 2

Which of the following is the function of glucocorticoids?

a. resist stress
b. resist inflammation
c. stimulates gluconeogenesis
d. decreases glucose utilization by cells
e. all the the above

Answer 2

e. all the above

remember the major glucocorticoid is cortisol!

Question 3

Aldosterone, a major mineralocorticoud is secreted by what layer of the adrenal cortex?

a. zona glomerulosa
b. zona fasciculata
c. zona reticularis
d. medulla

Answer 3

a. zona glomerulosa

Question 4

Cortisol is controlled by what factors?

a. PTH
b. ACTH
c. angiotensin II
d. ACE

Answer 4

b. ACTH

Question 5

Active form of vitamin D increases formation of what to promote intestinal uptake of calcium?

a. calbindin
b. calciferol
c. aldosterone
d. PTH

Answer 5

a. calbindin

Question 6

At what level is hypocalcemia lethal

a. 14 mg/dl
b. 7 mg/dl
c. 9.5 mg/dl
d. 4 mg/dl

Answer 6

d. 4 mg/dl

Question 7

What is the amount of calcium that is lost in feces per day?

a. 100 mg
b. 200 mg
c. 900 mg
d. 990 mg

Answer 7

C. 900 mg

Question 8

What effects does PTH have on renal tubules?

a. reabsorption of sodium
b. reabsorption of calcium
c. reabsorption of phosphate
d. reabsorption of calcium, phosphate, and amino acids

Answer 8

b. reabsorption of Calcium

Question 9

what parasympathetic nerve innervates the parotid gland?

a. Oculomotor (CN III)
b. Facial (CN VII)
c. Glossopharyngeal (CN IX)
d. Vagus (CN X)

Answer 9

c, CN IX glossopharyngeal

Question 10

ANS effects on sweat glands in the hands and feet?

a. sympathetic; cholinergic
b. sympathetic; adrenergic
c. parasympathetic ; cholinergic
d. parasympathetic; adrenergic

Answer 10

a. sympathetic; cholinergic
and
b. sympathetic; adrenergic (a few in soles and palms

Question 11

What drug acts as antihypertensive agent by being uptaken by adrenergic neurons and replacing norepinephrine in synaptic vesicles?

a. Guanethidine
b. Reserpine
c. Methoxamine
d. propranolol

Answer 11

a. Guanethidine

Question 12

What is the function of Beta3 receptors?

a. Adrenergic; vasodilation
b. adrenergic; lipolysis
c. adrenergic; glycogenolysis
d. adrenergic; thermogenesis

Answer 12

d. adrenergic; thermogenesis

Question 13

What is the amino acid precursor to norepinephrine?

a. tyrine
b. proline
c. methine
d. tyrosine

Answer 13

d. tyrosine

Question 14

What type of receptor is found in neuromuscular junctions in skeletal muscles?
a, muscarinic
b. alpha 1
c. Nicotinic
d. beta2

Answer 14

c. nicotinic

Question 15

Which of the following is a disturbance due to glucocorticoid deficiency in Addison’s disease?

a. metabolic acidosis
b. rise in RBC concentration
c. decrease in cardiac output
d. muscle weakness

Answer 15

d. Muscle weakness

other symptoms include:

• loss of ability to maintain normal blood glucose concentrations between meals
• reduction in both proteins and fats leading to depression of other bodily function
• weight loss, nausea vomiting,
• highly susceptible to stress

Question 16

What type of fibers pass through the gray rami?

a. postganglionic sympathetic
b. post ganglionic parasympathetic
c. preganglionic sympathetic
d. preganglionic parasympathetic

Answer 16

b. postganglionic sympathetic