In the cardiac and vascular function curves shown below, the solid curves represent the control state. The shift, shown by the dashed line, is explained by:
A. administration of positive inotropic agent
B. hemorrhage
C. infusion of isotonic saline
D. increase in peripheral vascular resistance
E. administration of a negative inotropic agent
ANS: B
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The taste area is located in the
A. insula. B. parietal lobe. C. frontal lobe. D. temporal lobe.
Capillaries lack smooth muscle and elastic or fibrous tissue reinforcement. Instead, their walls consist of ________, supported on a cellular matrix called ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following would not have an effect on synaptic function?
A) interfering with neurotransmitter synthesis B) interfering with neurotransmitter reuptake C) preventing neurotransmitter inactivation D) interfering with chemically gated sodium channels E) interfering with voltage-gated sodium channels
Factors that influence the rate and depth of breathing include ________
A) stretch receptors in the alveoli B) temperature of alveolar air C) voluntary cortical control D) thalamic control