80. Which of the following statements concerning the peripheral nervous system i

Question

80. Which of the following statements concerning the peripheral nervous system is false? Spinal nerves lead to and from the spinal cord a. b. There are 31 pairs of spinal nerves. Cranial nerves lead from the brain directly to the spinal cord. d. c. Some nerves carry only sensory fibers. e. All spinal nerves carry both sensory and motor fibers. 81. The major divisions of the peripheral nervous system are the somatic and autonomic systems. a. b. sympathetic and parasympathetic systems. peripheral and central systems. c. d. afferent and autonomic systems. e. cranial and skeletal nerves. 82. A nerve whose fibers conduct impulses only away from the central nervous system is a. exclusively motor. b. exclusively sensory c. motor or sensory depending on body location. d. a spinal nerve. e. a cranial nerve. 83. Somatic system fibers in nerves carry information a. to and from receptors. b. to and from effectors. c. from receptors in skin, tendons, and skeletal muscles. d. to skeletal muscles. from receptors in skin, tendons, and skeletal muscle and to skeletal muscles. The autonomic subdivision of the vertebrate nervous system would innervate all EXCEPT which of the e. 84 . following? a. intestinal muscles b. skeletal muscles c. heart pancreas liver

Explanation / Answer

80.a.spinal nerves lead to and from the spinal cord.

81.a.somatic and autonomic nervous systems.

82.a.exclusively motor.

83.d.to skeletal muscles.

84.b.skeletal muscles.

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