Human Anatomy, Books a la Carte Edition (8th Edition)
8th Edition
ISBN: 9780134283395
Author: Elaine N. Marieb, Patricia Brady Wilhelm, Jon B. Mallatt
Publisher: PEARSON
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Chapter 14, Problem 4CRCAQ
A quarterback suffered torn menisci in his right knee joint when he was tackled from the side. The same collision crushed his common fibular nerve against the neck of his right fibula. What locomotor problems can he expect to experience from this nerve injury?
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A quarterback suffered torn menisci in his right knee joint when he was tackled from the side. The same collision crushed his common fibular nerve against the neck of his right fibula. What locomotor problems can he expect to experience from this nerve injury?
A 17-year-old skateboarder fell while riding down a railing and suffered a fracture at the middle of his humerus. After surgery his surgeon told him nerve damage from the fall would prevent him from being able to extend his wrist and fingers, but he would still be able to extend his elbow. Explain why he can no longer extend his wrist and fingers. Which nerve was injured? Which muscle was unaffected that will enable him to still extend his elbow?
Bell’s Palsy affects the facial nerve and most often presents with motor symptoms only. Yet the facial nerve is a mixed sensory nerve; suggest possible reasons for this anomaly.
Chapter 14 Solutions
Human Anatomy, Books a la Carte Edition (8th Edition)
Ch. 14 - Prob. 1CYUCh. 14 - Do all nerves contain both sensory and motor...Ch. 14 - Name the functional type of the sensory receptors...Ch. 14 - Are proprioceptors part of the somatic or visceral...Ch. 14 - Prob. 5CYUCh. 14 - Prob. 6CYUCh. 14 - Prob. 7CYUCh. 14 - Prob. 8CYUCh. 14 - Prob. 9CYUCh. 14 - Below which vertebra does each of the following...
Ch. 14 - Would a patient with a spinal injury at C5 be able...Ch. 14 - Prob. 12CYUCh. 14 - Prob. 13CYUCh. 14 - Prob. 14CYUCh. 14 - Prob. 15CYUCh. 14 - Using Hilton's law, identity the nerves that...Ch. 14 - Explain why a disc herniation at the level of...Ch. 14 - Shingles blisters that encircle the abdomen at the...Ch. 14 - Use your knowledge of word roots to define these...Ch. 14 - Does postpolio syndrome result from a dormant...Ch. 14 - Prob. 1RQCh. 14 - The large, onion-shaped pressure receptors in deep...Ch. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Which one of the following contains only motor...Ch. 14 - Prob. 7RQCh. 14 - Whereas bronchial refers to the airways in the...Ch. 14 - Which cranial nerves contain somatic motor axons...Ch. 14 - Which of the following components occur in all of...Ch. 14 - Prob. 11RQCh. 14 - Prob. 12RQCh. 14 - (a) Define nerve plexus. (b) List the spinal...Ch. 14 - ln the brachial plexus, what specific rami make up...Ch. 14 - Prob. 15RQCh. 14 - Choose the correct answer, and explain why it is...Ch. 14 - There are 40 roots in the cauda equina. To what...Ch. 14 - As Harry was falling off a ladder, he reached out...Ch. 14 - Frita, in her early 70s, had problems chewing....Ch. 14 - Ted is a war veteran who was hit in the back with...Ch. 14 - A quarterback suffered torn menisci in his right...Ch. 14 - In a patient who developed carpal tunnel syndrome,...Ch. 14 - Using Hiltoa’s law, (1) deduce which four nerves...Ch. 14 - After suffering from a broken humerus, a patient...Ch. 14 - Name all of the nerves that innervate the tongue.
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- 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?arrow_forwardThe coracobrachialis, which acts to adduct and flex the arm at the shoulder, is innervated by which nerve?arrow_forwardYou are walking along the beach barefoot and step on a sharp object with your right foot. You immediately flex the right leg and balance yourself by extending the left leg. Label the following neurons in Figure.1. Sensory neuron 2. Interneuron sending impulses up and down the spinal cord 3. Interneuron synapsing with motor neurons 4. Motor neuron causing flexion 5. Motor neuron causing extensionarrow_forward
- During a difficult delivery, the baby’s arm delivered first. The attending physician grasped the arm and forcefully pulled it. Later, a nurseobserved that the baby could not abduct or adduct the medial fourfingers, and flexion of the wrist was impaired. What nerve wasdamaged?arrow_forwardA friend who works in a research lab is conducting an experiment to study motor movement. First the animal undergoes spinal transection at T5. Then, the animal is trained to walk on a treadmill while supported. Finally, GABA antagonists are injected into the lumbar enlargement of the spinal cord. After treatment of the drug, what motor response would you expect? Question 5 options: A) The animal no longer has proper functioning of back or front legs while on the treadmill B) The animal no longer has coordinated movement of the front legs while on the treadmill C) The animal no longer has coordinated movement of the back legs while on the treadmill D) The animal can walk normally on the treadmill (with support)arrow_forwardWhen a patient needs a tendon graft, surgeons sometimes use the tendon of the palmaris longus, a relatively dispensable muscle of the forearm. The median nerve lies nearby and looks very similar to this tendon. There have been cases in which a surgeon mistakenly removed a section of this nerve instead of the tendon. What effects do you think such a mistake would have on the patient?arrow_forward
- While moving a large box in his garage, Carl hurt his back. Withinhours, the pain in his back was radiating down the medial side of hisleft thigh and knee. It was especially difficult for Carl to flex his lefthip and extend his left knee. He could not stand the pain, so he wentto the emergency room. Radiographs and an MRI revealed a bulgingintervertebral disk. Which spinal nerve was most likely affected, andwhy were Carl’s motor movements affected? Also, explain the referredpain.arrow_forwardSort the structures that the action potential would pass through after being generated by the first order sensory neuron. Drag and drop options into correct order and submit. thalamus anterior ramus of spinal nerve posterior root and rootlets somatosensory cortex of the cerebrum posterior funiculus brainstem brachial plexus posterior grey horn ||| ||| = ||| = ||| = ||| = ||| ||| ||| =arrow_forwardWhich system within the CNS is the most powerful and profound for the motor funtions for our bodies?arrow_forward
- An injury to the superior portion of the primary motor cortex would affect the ability to control muscles of which parts of the body?arrow_forwardAPI John was struck in the left side of his face with a baseball while batting. He was not wearing a helmet and he fractured his zygomatic arch and parts of his temporal bone. After he had reconstructive surgery he noticed his left lower eyelid was still drooping and the corner of his mouth was sagging. What nerve was damaged and what other issues could damage to this nerve cause?arrow_forwardFor each of the following body regions, name the peripheral nerve that carries somatic motor fibers to most of the skeletal muscles: flexor surface of the arm flexor surface of the forearm extensor surface of the arm and forearm anterior thigh posterior thigh anterior leg posterior legarrow_forward
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