Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
10th Edition
ISBN: 9780321908599
Author: Frederic H. Martini, Judi L. Nath, Edwin F. Bartholomew
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 29RQ
The improper use of crutches can produce a condition known as “crutch paralysis,” characterized by a lack of response by the extensor muscles of the arm. and a condition known as “wrist drop.” consisting of an inability to extend the fingers and wrist. Which nerve is involved?
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Students have asked these similar questions
Improper use of crutches can produce a condition known as crutch paralysis, which is characterized by a lack of response by the extensor muscles of the arm and a condition known as wrist drop. Which nerve is involved?
Loss of sensation to the thumb is indicative of injury to which nerve?
median
Oaxillary
ulnar
musculocutaneous.
Median nerve: show how it branches from the brachial plexus, travels deep to the clavicle, distally down the anterior brachial and antebrachial regions, and eventually passes through the flexor retinaculum to innervate the wrist flexor muscles.
Obturator nerve: show how it branches from the lumbar plexus through the obturator foramen to innervate the muscles of the medial thigh, i.e., gracilis and adductors.
Sciatic nerve: show how it branches laterally from the sacral plexus at the intervertebral foramen between L5 and S1 and then pass through the greater sciatic notch to the posterior thigh to innervate the hamstrings.
Show anterior and posterior image that show the plexus from which the nerve is derived, its pathway though the body, and to the anatomical area where it innervates skeletal muscles.
Show either by drawing or using a skeleton model.
Chapter 13 Solutions
Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
Ch. 13 - Name the structures of the central nervous system...Ch. 13 - Define spinal reflex.Ch. 13 - Identify the three spinal meninges.Ch. 13 - Prob. 4CPCh. 13 - Prob. 5CPCh. 13 - Differentiate between sensory nuclei and motor...Ch. 13 - Prob. 7CPCh. 13 - Prob. 8CPCh. 13 - Prob. 9CPCh. 13 - Prob. 10CP
Ch. 13 - Injury to which of the nerve plexuses would...Ch. 13 - Compression of which nerve produces the sensation...Ch. 13 - Prob. 13CPCh. 13 - Prob. 14CPCh. 13 - Prob. 15CPCh. 13 - Prob. 16CPCh. 13 - Prob. 17CPCh. 13 - Prob. 18CPCh. 13 - Prob. 19CPCh. 13 - Prob. 20CPCh. 13 - Prob. 21CPCh. 13 - Prob. 22CPCh. 13 - Prob. 23CPCh. 13 - LEVEL 1 Reviewing Facts and Terms 1. Label the...Ch. 13 - Prob. 2RQCh. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - Prob. 9RQCh. 13 - Prob. 10RQCh. 13 - The reflexes that control the most rapid,...Ch. 13 - Prob. 12RQCh. 13 - Prob. 13RQCh. 13 - Prob. 14RQCh. 13 - Proceeding deep from the most superficial...Ch. 13 - Prob. 16RQCh. 13 - Prob. 17RQCh. 13 - Polysynaptic reflexes can produce far more...Ch. 13 - Prob. 19RQCh. 13 - Prob. 20RQCh. 13 - Prob. 21RQCh. 13 - Prob. 22RQCh. 13 - Prob. 23RQCh. 13 - Prob. 24RQCh. 13 - Prob. 25RQCh. 13 - Prob. 26RQCh. 13 - Prob. 27RQCh. 13 - Prob. 28RQCh. 13 - The improper use of crutches can produce a...Ch. 13 - Prob. 30RQCh. 13 - Karen falls down a flight of stairs and suffers...Ch. 13 - Will Joe regain motor or sensory activity in his...Ch. 13 - Prob. 2CC
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- Choose a cranial or spinal nerve and talk about the followings: name and number; sensory, motor or both; where does the nerve originate from in the brain or spinal cord.arrow_forwardWeakness or paralysis of the trapezius may be due to damage of cranial nerve(s) which ones?arrow_forwardFor Figures write the name of the nerve next to the appropriate numbered blank.arrow_forward
- Explain the descending pathway from the brain where Mr. Dexter decides to move his right leg to the actual movement of his quadriceps. (Use complete sentences.) Use key words in this order: primary motor cortex in precentral gyrus, frontal lobe, descending tract, decussate, ventral horn with motor neuron in lumbar spinal cord, ventral root, spinal nerve, sciatic nerve in lumbosacral plexus, muscles to move leg (ie. quadriceps)to take a step.arrow_forwardCarpal tunnel syndrome is caused by compression of which nerve?arrow_forwardCarpal tunnel and tarsal tunnel syndrome cause nerve degeneration resulting in specific symptoms and changes in the nerves. These include: Select ALL that apply. Muscle weakness or atrophy A positive Phalen sign A positive Tinel sign Oligodendrocyte cells distal to the injury secrete factors to promote regeneration Regeneration of the nerve by slow axonal transport Wallerian degeneration proximal to the compression site Paraesthesiaarrow_forward
- Carpal tunnel syndrome is a modern medical problem created by repetitive tasks such as keyboarding on computers or doing assembly line work. in this condition nerves in the wrist may become pinched, producing irritating, tingling sensations in the hands and lower arms. a) what is the source of the tinglingarrow_forward. A 30 year old woman has loss of sensation on the dorsum of her left hand except over her small finger in the medial half of her ring finger there is no evidence of wrist-drop, abduction and extension of the thumb are normal which of the following nerve is most likely injured? interior interosseous deep branch of radio median musculocutaneous superficial branch of the radial ulnararrow_forwardA typical spinal nerve: Select one: a. normally divides into four branches that will supply the thoracic region, the abdominal region, the pelvic region and the limbs b. is covered by the connective tissue called epineurium c. attaches to the spinal cord via the dorsal root ganglia d. is protected by the dura, arachnoid and pia mater e. contains one nerve fibre and it's myelin sheatharrow_forward
- Define the following: Muscle tonus- Spastic paralysis- Flaccid paralysis- Poliomyelitis affects the anterior horn of the spinal gray matter. Would you expect the polio patient to exhibit spastic or flaccid paralysis? Why?arrow_forwardCorrectly label the following anatomical features of a nerve. Endoneurium Posterior root ganglion Reset Zoom Perineurium Epineurium Myelinated nerve fibers Rootlets Myelin Fascicle 17 Blood vessels Unmyelinated nerve fibersarrow_forwardV. Triceps Jerk a Reflex that assesses the nervous tissue between (and including) the C6, C7, and C8 nerve roots. b. It can be elicited by supporting your partner's arm with the elbow flexed at a 90° angle, sharply striking the posterior surface of the upper arm approximately 2 inches above the olecranon (bony "tip" of the elbow). c. Normal response: The triceps should twitch, and the elbow should extend. Label the feedback mechanism for this reflex. THEREH Binepe Incepaarrow_forward
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