The vasomotor tone of blood vessels is mostly under sympathetic control.
Indicate whether the statement is true or false
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Question 2) Which of the following adrenergic neurotransmitter receptors plays the major role in heart activity?
A) alpha 1
B) beta 1
C) beta 2
D) beta 3
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Question 3) Which sympathetic fibers form a splanchnic nerve?
A) those that synapse with parasympathetic fibers
B) those that pass through the trunk ganglion to synapse in collateral or prevertebral ganglia
C) those that synapse with somatic fibers
D) those that synapse in the same trunk ganglion they entered
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Question 4) Most splanchnic nerves pass through the abdominal aortic plexus.
Indicate whether the statement is true or false
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Question 5) Autonomic dysreflexia ________.
A) usually precedes spinal shock
B) results from over-excitatory input from the cortex
C) is also known as autonomic areflexia
D) involves uncontrolled activation of autonomic neurons
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Question 6) All splanchnic nerves are sympathetic.
Indicate whether the statement is true or false
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Question 7) Raynaud's disease ________.
A) is frequently life threatening
B) is induced by heat stress
C) occurs primarily in association with injury to the spinal cord
D) is characterized by exaggerated vasoconstriction in the extremities
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Question 8) Which is a uniquely sympathetic function?
A) regulation of pupil size
B) regulation of respiratory rate
C) regulation of body temperature
D) regulation of cardiac rate
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Question 9) The effect of the parasympathetic division on the penis is vasodilation causing erection, while ejaculation is due to sympathetic stimulation.
Indicate whether the statement is true or false
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Question 10) The blood vessels of the skin are one of the few areas of the body where the vessels are innervated by both the sympathetic and parasympathetic divisions.
Indicate whether the statement is true or false
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