The arteries
a. serve as rapid-transit passageways from the tissues to the heart because of their large radii.
b. act as a blood reservoir because they have the capacity to store large volumes of blood with little change in their internal pressure.
c. are the major resistive vessels of the vasculature.
d. are the site of exchange between the blood and surrounding tissues.
e. none of these answers.
E
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In terms of blood flow, why is it important that atrial diastole occurs just as ventricular systole begins?
A. Blood is continually propelled in a forward motion down its pressure gradient. B. The atria need that time to prepare for the next contraction. C. Ventricular systole pulls the remaining 20% of blood volume from the atria. D. Blood would flow too fast otherwise.
Most inspired particles such as dust fail to reach the lungs because of the ________
A) action of the epiglottis B) ciliated mucous lining in the nose C) porous structure of turbinate bones D) abundant blood supply to nasal mucosa
A buck is a(n) __________________________________________________ goat
Fill in the blank(s) with correct word
The major enzyme system responsible for most drug interactions:
a. Cyt P550 b. Cyt P450 c. Cyt P350 d. Cyt P250