The most important stimulus of insulin release is:
A. glucose
B. glucagon
C. adrenergic stimulation
D. cholinergic stimulation
E. amino acids
ANS: A
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Which of the following is not associated with juxtamedullary nephrons?
a. Glomeruli located in medulla b. Long loops of Henle c. Peritubular capillaries forming vasa recta d. Collecting duct in medulla e. Important role in the ability of the kidneys to produce urine of varying concentration
Plasma proteins constitute about _____ percent of plasma by weight
a. 8- 10 b. 6 - 8 c. 4 - 6 d. 1 - 4
Which would reduce peripheral resistance: an increase in vessel length or an increase in vessel diameter?
A) an increase in vessel length B) an increase in vessel diameter
Which of the following are harmful or disease-causing microorganisms from which nonspecific defenses protect the body?
A) macrophages B) antibodies C) pathogens D) allergens