Fundamentals of Anatomy & Physiology (10th Edition)
Fundamentals of Anatomy & Physiology (10th Edition)
10th Edition
ISBN: 9780321909077
Author: Frederic H. Martini, Judi L. Nath, Edwin F. Bartholomew
Publisher: PEARSON
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Chapter 13, Problem 9RQ
Summary Introduction

Introduction:

Lumbar plexus is one of the major plexus of ventral rami.

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Spinal nerves are called mixed nerves because they (a) are associated with a pair of dorsal root ganglia. (b) exit at intervertebral foramina. (c) contain sensory and motor fibers. (d) are associated with a pair of dorsal and ventral roots.
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Which of the following is false regarding nerve plexuses? A) Nerve plexuses occur in the cervical, brachial, lumbar and sacral regions. B) Nerve plexuses involve only the dorsal rami. C) Nerve plexuses are interlacing nerve networks, so that each branch of a plexus contains fibers from several spinal nerves. D) Because of nerve plexuses, each muscle in a limb receives its nerve supply from more than one spinal nerve. E) Because of nerve plexuses, damage to a single spinal segment or root cannot completely paralyze any limb muscle. In a spinal reflex, integration occurs  in the cerebral cortex  in the brain stem  in the thalamus  in the spinal cord  in the cerebellum True or false. The amplitude of a sound wave determines the pitch of a sound, while the sound intensity is determined by the wavelength of a sound wave

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Fundamentals of Anatomy & Physiology (10th Edition)

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