The two divisions of the autonomic nervous system, sympathetic and parasympathetic,
A. use preganglionic and postganglionic neurons to innervate skeletal muscle.
B. are composed of PNS structures only.
C. are voluntary.
D. contain autonomic ganglia to house ganglionic neurons.
E. function only during sleep.
Answer: D
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The mushroom poison muscarine can bind to receptors on ________
A) cell bodies and dendrites of parasympathetic postganglionic neurons B) cell bodies and dendrites of sympathetic postganglionic neurons C) the hormone producing cells of the adrenal medulla D) all effector cells stimulated by postganglionic cholinergic fibers
Which of the following disorders does not result from disjunction?
A. Cri du chat B. Turner syndrome C. Klinefelter syndrome D. Down syndrome E. Patau syndrome
The lowest venous blood pressure is found in the ________.
Fill in the blank(s) with the appropriate word(s).
Which plexus gives rise to the sciatic nerve?
A. Coccygeal B. Cervical C. Lumbar D. Sacral E. Brachial