Human Anatomy (8th Edition) - Standalone book
8th Edition
ISBN: 9780321883322
Author: Frederic H. Martini, Robert B. Tallitsch
Publisher: PEARSON
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Chapter 14, Problem 8RFT
Summary Introduction
To review:
Match the term obturator nerve 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 obturator nerve is one of the nerves of the lumbar plexus. It starts from the L2 and ends at L4 of the ventral rami. Its function is to receive sensory signals from the middle surface of the thigh. It supplies muscles, such as the obturator externus, adductor magnus, gracilis externus, and the brevis.
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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.
the bundle of fibers that the spinal cord continues down is called the ........................
damage 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.............................................
Chapter 14 Solutions
Human Anatomy (8th Edition) - Standalone book
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_forwardWhich of the following is NOT true in adults? (A) The tapering end of the spinal cord may terminate as high as T12 or as low as L3. (B) The first cervical nerves lack dorsal roots in 50% of people. (C) The coccygeal nerve may be absent. (D) The terminal filum is the vestigial rem- nant of the caudal part of the spinal cord that was in the tail of the embryo. (E) The spinal cord has a lumbar enlargement for the lower limb but no equivalent enlargement for the smaller upper limb.arrow_forwardWhich statement is true regarding a spinal (peripheral) nerve? A) they can contain afferent axons only B) each nerve ending contains a single axon C)They innervate all regions of the body, including the head D) there are 31 pairs of spinal nervesarrow_forward
- A patient has weakness in dorsiflexion of the foot (footdrop)after an intragluteal injection into the inferolateral quadrant of the hip. which of the following nerves is most likely to be injured?. A) superior gluteal B), inferior gluteal C) sciatic D), obturator E) femoralarrow_forwardA ganglion is a collection of (a) neuron cell bodies, (b) axons of motor neurons, (c) interneuron cell bodies, (d) axons of sensory neurons.arrow_forwardIdentify this nerve which decreases heart rate by opening potassium channels in autorhythmic cells (A) glossopharyngeal nerve (B) vagus nerve (C) sympathetic accelerator nervesarrow_forward
- Which of the following nerves listed innervates most of the organs of the abdomen and the thorax? (a) spinal nerves, (b) the vagus nerve, (c) the oculomotor nerve, (d) the facial nerve.arrow_forwardThe shape of the cell bodies of upper and lower motor neurons are structurally classified as ........................ and..................... , respectivelyarrow_forwardQuestion about anatomyarrow_forward
- Sketch 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_forwardMatch cells and function : Oligodendrocyte , Astrocytes 1. .......................... enhances the velocity of electrical transmission of an action potential along an axon in the CNS. 2. .......................... glial cells act locally to maintain normal electrolyte composition of the cerebrospinal fluid.arrow_forwardIdentify the Golgi tendon reflex (which is an innate reflex) as (a) spinal or cranial, (b) somatic or visceral, (c) monosynaptic or polysynaptic, and (d) ipsilateral or contralateral.arrow_forward
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