Pearson eText Human Anatomy -- Instant Access (Pearson+)
9th Edition
ISBN: 9780135212936
Author: Frederic Martini, Robert Tallitsch
Publisher: PEARSON+
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Question
Chapter 14, Problem 7RFT
Summary Introduction
To review:
Match the term brachial plexus with the most closely related description given below:
Tracts and columns
Specific region of body surface
Cervical plexus
Motor neuron axons
Sacral plexus
Lumbar plexus
Single bundle of axons
Involuntary motor response
Loose connective tissue, adipose tissue
Pectoral girdle/upper extremity
Introduction:
The brachial plexus is a complex network of nerves that begins from the ventral rami of the spinal nerves. It supplies to the hand, chest, and shoulders. Therefore, it innervates the upper limb and the pectoral girdle.
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the bundle of fibers that the spinal cord continues down is called the ........................
Fill in the blanks below:
Sensory neurons carrying information into the spinal cord synapse at the .................. horn.
Motor commands exiting the spinal cord are generated in the............... horn.
The interneurons that process sensory information and determine the appropriate motor output are found in the.................... matter of the spinal cord.
The myelinated axons of the neurons carrying information to and from the brain are found in the .............. matter.
A ganglion is a collection of (a) neuron cell bodies, (b) axons of motor neurons, (c) interneuron cell bodies, (d) axons of sensory neurons.
Chapter 14 Solutions
Pearson eText Human Anatomy -- Instant Access (Pearson+)
Ch. 14 - Match each numbered item with the most closely...Ch. 14 - Prob. 2RFTCh. 14 - Prob. 3RFTCh. 14 - Prob. 4RFTCh. 14 - Prob. 5RFTCh. 14 - Prob. 6RFTCh. 14 - Prob. 7RFTCh. 14 - Prob. 8RFTCh. 14 - Prob. 9RFTCh. 14 - Match each numbered item with the most closely...
Ch. 14 - Label the following structures on the accompanying...Ch. 14 - Prob. 12RFTCh. 14 - The brachial plexus (a) innervates the shoulder...Ch. 14 - Prob. 14RFTCh. 14 - Prob. 15RFTCh. 14 - Prob. 16RFTCh. 14 - Prob. 17RFTCh. 14 - Prob. 18RFTCh. 14 - Prob. 19RFTCh. 14 - Prob. 20RFTCh. 14 - Prob. 21RFTCh. 14 - Prob. 1RCCh. 14 - Prob. 2RCCh. 14 - Tingling and numbness in the palmar region of the...Ch. 14 - Prob. 4RCCh. 14 - Prob. 5RCCh. 14 - Prob. 6RCCh. 14 - Prob. 7RCCh. 14 - Prob. 8RCCh. 14 - Prob. 9RCCh. 14 - Why is it important that a spinal tap be done...Ch. 14 - Prob. 1CTCh. 14 - Prob. 2CTCh. 14 - Prob. 3CT
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- damage to which spinal nerve might produce the following physical findings? a- inability to extend the forearm and hand......................................... b- inability to breathe............................................ c- inability to feel the skin over the anterolateral thigh....................................... d- inability to dorsiflex the foot.............................arrow_forwarddamage to which cranial nerve might produce the following results? a- inability to move the tongue................................................. b- inability to see........................................................ c- inability to masticate(chew food)...................................... d- inability to swallow.............................................arrow_forwardAfter a lengthy car ride, your elderly uncle gets out of the car and complains, “I can hardly walk. It must be sciatica.” Explain what this means.arrow_forward
- if a signal from within one hemisphere travels from one gyrus to another gyrus it uses........................fibers a. projection b. commissural c. corpus collasum d. associationarrow_forwardAnatomy and Physiology motor areas of the cortex are located .............to the .............. sulcus choices a. anterior, central b. anterior, hypocampal c. posterior, central d. anterior, cyngulatearrow_forwardPatient comes to the physician because in church he has begun failing every time he closes his eye while standing for prayer. He has….. High and stamps it forcefully on the ground with each step. He must watch his foot while walking to avoid striking down or other obstacles…. Symptoms most likely involves which of the following structures? a) Cerebellum b) Joints c) Muscles d) Motor cortex e) Posterior columnsarrow_forward
- (a) Define plexus. (b) Indicate the spinal roots of origin of the four major nerve plexuses, and name the general body regions served by each.arrow_forwardThe shape of the cell bodies of upper and lower motor neurons are structurally classified as ........................ and..................... , respectivelyarrow_forwardWhich one of the following contains only motor fibers? (a) dorsal root, (b) dorsal ramus, (c) ventral root, (d) ventral ramus.arrow_forward
- Which of the following parts of a neuron occupies the gray matter in the spinal cord? (a) tracts of long axons, (b) motor neuron cell bodies, (c) sensory neuron cell bodies, (d) nerves.arrow_forwardWhich 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 wavearrow_forwardSketch the spinal cord in cross section, and label the following structures: (a) lateral funiculus of white matter, (b) ventral root, (c) ventral horn of gray matter, (d) central canal, (e) dorsal root ganglion, (f) dorsal column tracts: fasciculus gracilis and fasciculus cuneatus, (g) ventral corticospinal tract, (h) lateral corticospinal tract.arrow_forward
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