Substances that are both filtered and reabsorbed have a renal plasma clearance that is _________ the GFR
A. higher than
B. lower than
C. the same as
B
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Which statement comparing the autonomic and somatic nervous systems is not true?
A. Both the autonomic and somatic divisions carry motor fibers. B. The somatic motor division is strictly voluntary and the autonomic division is completely involuntary. C. The primary effectors of the ANS are viscera of the abdominal and thoracic cavities in contrast to the somatic motor division, which targets skeletal muscles. D. The somatic motor division requires one neuron to reach an effector in contrast to the ANS, which requires two neurons to cause an effect. E. Both the somatic motor division and the ANS are categorized as part of the peripheral nervous system.
What causes systole -the contraction of cardiac ventricular cells?
a. action potentials from motor neuronsb.action potentials from sympathetic neurons c. release of neurotransmitter from autorhythmic cardiac cells onto contractile cells d. spontaneous depolarization of autorhythmic cells spreads to contractile cell membranes
In the following sequence, fill in the missing blood vessel.Abdominal aorta; ________; splenic artery
Fill in the blank(s) with the appropriate word(s).
Myelin has a high lipid content because it is formed of ______.
a. plasma membranes b. lipofuscin c. cholesterol