Regurgitation of blood flow through the aortic semilunar valve would give rise to
A. the first heart sound.
B. end-systolic volume.
C. an extra heart beat.
D. the second heart sound.
E. a heart murmur.
Answer: E
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Which component of the nervous system is comprised of sympathetic and parasympathetic divisions?
a. central nervous system. b. somatic nervous system. c. autonomic nervous system. d. afferent division. e. none of these answers.
Identify the highlighted liver lobe.
Answer the following statements true (T) or false (F)
1. The first major branch of the femoral artery is the dorsalis pedis artery. 2. The azygos vein originates in the abdomen 3. Whereas diffusion is more important for solute exchange between plasma and interstitial fluid, bulk flow is more important for regulation of the relative volumes of blood and interstitial fluid. 4. Peyer's patches are clusters of lymphoid tissue found primarily in the large intestine. 5. The lymphatic capillaries function to absorb the excess protein-containing interstitial fluid and return it to the bloodstream.
Which of the following chemical reactions best represents the synthesis of ATP?
A. ADP + Pi + energy ? ATP + H2O B. ATP + energy ? ADP + H2O C. ATP + H2O ? ADP + Pi + energy D. ATP + ADP ? ATP E. ADP + ADP + ADP ?ATP + energy