Distension of the superficial veins caused by weakened valves is termed
A) hemorrhoids.
B) venoconstriction.
C) vaso vasorum.
D) varicose veins.
E) venous reserve.
D
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Animals that do not have a gallbladder have which type of digestive system?
a. monogastric c. nonruminant b. ruminant d. avian
Which is FALSE about neurons?
A. A given neuron can be either a presynaptic neuron or a postsynaptic neuron. B. An individual neuron can receive information from multiple other neurons. C. An individual neuron can transmit information to multiple other neurons. D. A neuron can simultaneously release more than one type of neurotransmitter. E. A neuron receives information on its axons and delivers it to other neurons through its dendrites.
The figure illustrates the autonomic reflexes and the heart. What does "D" represent?
A. sympathetic nerve B. increase in blood pressure detected by carotid baroreceptors C. glossopharyngeal nerve D. decrease in blood pressure detected by carotid baroreceptors E. vagus nerve
The final breakdown product of protein is
A. glucose. B. maltose. C. amino acids. D. fatty acid.