Ch 14: Peripheral Nervous System – Flashcards
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What do cranial nerves I, II, and VIII have in common?
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They all transmit special sensory impulses
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Of the cranial nerve pairs listed below, which nerve, along with XI and XII, relays only somatic motor impulses?
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IV
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he spinal root of which cranial nerve pair innervates the sternocleidomastoid and trapezius muscles?
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XI
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Mixed cranial nerves containing both motor and sensory fibers include all of the following except the
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optic
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To avoid double vision, which of the following groups of cranial nerves must be functioning correctly?
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III, IV, and VI
oculomotor, trochlea, abducens
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Dorsal rami __________.
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branch from spinal nerves to innervate the deep/intrinsic muscles of the back
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Contraction rate of the diaphragm is controlled by which nerve?
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phrenic (cervical plexus)
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Plexus
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Network of fibers from ventral rami that crisscross
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A fracture of the humerus that injures the radial nerve could cause which deficit?
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loss of function of digital and carpal extensors
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The musculocutaneous nerve __________.
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innervates the biceps brachii, brachialis, and coracobrachialis muscles
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Which spinal nerve relays motor impulses to most of the muscles of the posterior forearm?
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radial
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T/F One of the largest branches of the sacral plexus is the sciatic nerve.
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True
