Which of the following has the greatest effect on blood flow to the tissues?
A) diffusion distance across vessel walls
B) venous valves
C) peripheral resistance
D) blood pH levels
E) collagen fiber content of tunica external
C) peripheral resistance
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Which of the following does not occur with aging of the urinary system?
A) Decreased GFR B) Nephrons invert C) Renal tubules become encased in fat D) Fibrous connective tissue accumulates around the kidney capsule
The portion of the brain that regulates body temperature is the
A. cerebral cortex. B. hypothalamus. C. medulla oblongata. D. pons. E. hypophysis.
Melanocortins includes one or more of the following:
A) growth hormone B) ACTH and MSH C) MSH D) cortisol E) ACTH
Which class of movement can be considered a combination of the other two?
A) rhythmic B) voluntary C) reflex