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Ch. 13 The Peripheral Nervous System
Amerman- Human Anatomy & Physiology 3e
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814Non è quello che usi tu?Cambia libro di testo
Capitolo 13, Problema 3c

Define each of the following terms in your own words, using 20 or fewer words.
c. Posterior root ganglion

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1
Understand that the posterior root ganglion is part of the peripheral nervous system.
Recognize that it contains the cell bodies of sensory neurons responsible for transmitting sensory information.
Note that it is located in the posterior (dorsal) root of a spinal nerve.
Learn that sensory signals from the body travel through the posterior root ganglion to the spinal cord.
Remember that it plays a critical role in processing sensory input like pain, temperature, and touch.

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Posterior Root Ganglion

A cluster of nerve cell bodies located near the spinal cord, involved in sensory signal transmission.
Video consigliato:
02:31
Anterior and Posterior

Sensory Neurons

Nerve cells that carry sensory information from the body to the central nervous system for processing.
Video consigliato:
04:20
The Neuron

Spinal Nerve Anatomy

The structure of spinal nerves, which includes roots that connect the spinal cord to the peripheral nervous system.
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2:25
Nerves and Blood Supply
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Ramin presents for evaluation after a severe shoulder injury during which his entire brachial plexus suffered damage. What effects would you expect Ramin to have from this injury?

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Define each of the following terms in your own words, using 20 or fewer words.

a. Peripheral nerve

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Which cranial nerves are (a) sensory only, (b) primarily motor, and (c) mixed?

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First-order somatic sensory neurons are_____neurons whose cell bodies are located in the_____.


a. Multipolar, posterior horn

b. Pseudounipolar, posterior root ganglion

c. Bipolar, anterior horn

d. Pseudounipolar, posterior horn

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Domanda del libro di testo

First, write the Roman numeral that corresponds to each named cranial nerve (after the abbreviation CN). Second, match the cranial nerve with its correct function from the column on the right.


CN____               

______Vestibulocochlear nerve

CN____           

______Trigeminal nerve

CN____           

_______Hypoglossal nerve

CN____           

_______Abducens nerve

CN____           

_______Vagus nerve

CN____           

_______Olfactory nerve

CN____            

_______Accessory nerve

CN____           

_______Oculomotor nerve

CN____           

_______Facial nerve

CN____           

_______Optic nerve

CN____           

_______Glossopharyngeal nerve

CN____           

_______Trochlear nerve


a. Motor to the lateral rectus muscle

b. Motor to the muscles of facial expression; lacrimation; salivation; taste to the anterior two-thirds of the tongue

c. Sense of smell

d. Motor to the muscles for swallowing; salivation; taste to the posterior one-third of the tongue; somatic sensation from the throat

e. Senses of hearing and equilibrium

f. Motor to the superior oblique muscle

g. Motor to the tongue

h. Motor to the sternocleidomastoid and trapezius muscles

i. Sense of vision

j. Motor to muscles of swallowing and speaking; parasympathetic innervation to thoracic and abdominal viscera; sense of taste from the throat

k. Sensory to the face; motor to the muscles of mastication

l. Motor to four of six extrinsic eye muscles; constricts the pupil; changes the shape of the lens; opens the eyelid

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Domanda del libro di testo

Define each of the following terms in your own words, using 20 or fewer words.

b. Nerve plexus

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