Due to the differences in opposing forces, there is net ________ occurring at the arteriolar end of most capillaries, coupled with net ________ at the venous end.
A) filtration, absorption
B) absorption, filtration
A) filtration, absorption
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When a muscle contracts at a joint, which of the following affects torque?
A. the rotary component of muscle force B. the stabilizing component of muscle force C. the dislocating component of muscle force D. none of the above
Aging may be detrimental to the function of the digestive tract because
A) the effects of cumulative damage become apparent. B) the rate of epithelial stem cell division increases. C) the tone of the smooth musculature increases. D) aged cells and tissues require more nutrients, but are less efficient at processing them. E) None of the answers are correct.
During the cardiac cycle,
A. all four chambers of the heart are in systole at the same time. B. the right atrium and the right ventricle contract simultaneously. C. the left atrium contracts before the right atrium. D. the two atria relax while the two ventricles contract. E. all four chambers of the heart contract at the same time.
Identify the passageway found in the spinal cord that is continuous with the ventricles.
A. Choroid plexus B .Cerebral aqueduct C. Interventricular foramina D. Central canal