Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Textbook Question
Chapter 14, Problem 1CRCAQ
As Harry was falling off a ladder, he reached out and grabbed a tree branch with his hand. His overstretched upper limb became weak and numb. What major nervous structure had he injured?
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Spinal Cord
It had been a busy week for Amanda. She had taken three exams, and as if that wasn't stressful enough, her sister was ill and Amanda had to spend much of her time helping out at home. By the end of the week, Amanda decided to go to the beach for a walk and some genuine relaxation. The day was warm and Amanda took off her shoes so she could walk barefoot and feel the sand between her toes. Halfway down the beach, she stepped on something extremely sharp and withdrew her foot in pain. As Amanda hopped around the sand on one foot, rubbing the other to ease the pain, she decided to put her shoes back on.
What type of reflex is responsible for the uninjured leg going into full extension so she can balance on one foot?
As Harry was falling off a ladder, he reached out and grabbed a tree branch with his hand. His overstretched upper limb became weak and numb. What major nervous structure had he injured?
Spinal Cord
It had been a busy week for Amanda. She had taken three exams, and as if that wasn't stressful enough, her sister was ill and Amanda had to spend much of her time helping out at home. By the end of the week, Amanda decided to go to the beach for a walk and some genuine relaxation. The day was warm and Amanda took off her shoes so she could walk barefoot and feel the sand between her toes. Halfway down the beach, she stepped on something extremely sharp and withdrew her foot in pain. As Amanda hopped around the sand on one foot, rubbing the other to ease the pain, she decided to put her shoes back on.
Regarding the reflex that moved her injured foot, classify it according to the complexity of the circuit.
Chapter 14 Solutions
Human Anatomy
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 - Choose the correct cranial nerves from the key for...Ch. 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 - Prob. 8CRCAQCh. 14 - Prob. 9CRCAQ
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- was the fol Match the following: The obturator and femoral nerves branch from this plexus. Striking the "funny bone" (ulnar nerve) may cause injury to a nerve of this plexus. Trauma to a nerve of this plexus may cause wrist drop. A fall or improper administration of an injection to the buttocks may injure a nerve of this plexus. The phrenic nerve branches from this plexus. [Choose] [Choose ] Choose [Choose] [Choose]arrow_forwardWhy would you not want to touch the nerve with metal?arrow_forwardSpinal Cord It had been a busy week for Amanda. She had taken three exams, and as if that wasn't stressful enough, her sister was ill and Amanda had to spend much of her time helping out at home. By the end of the week, Amanda decided to go to the beach for a walk and some genuine relaxation. The day was warm and Amanda took off her shoes so she could walk barefoot and feel the sand between her toes. Halfway down the beach, she stepped on something extremely sharp and withdrew her foot in pain. As Amanda hopped around the sand on one foot, rubbing the other to ease the pain, she decided to put her shoes back on. As Amanda stepped on something sharp, she withdrew her foot due to reflexes. Any pain experienced would have been just AFTER she moved her foot off of the sharp object. Why is there a delay in perceiving the pain sensation?arrow_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_forwardWhat are the different nerve roots in the body? Both upper extremity and lower extremity. How can I memorize this?arrow_forwardNicky has recently had a viral infection and now she cannot move the muscles on the right side of her face. In addition, she is experiencing a loss of taste and a dry mouth, and she cannot close her right eye. What cranial nerve has been affected by the viral infection?arrow_forward
- The buzzing of the alarm clock woke Halie. She stretched, yawned, and started to salivate as she smelled brewing coffee. She could feel her stomach rumble. List the divisions of the nervous system that are involved in each of these actions.arrow_forwardCan you help me the name of the axon nerve of the labels in the picture?arrow_forwardThe peripheral target of axons running in the nerve identified by letter C is superior oblique muscle inferior oblique muscle medial rectus muscle lateral rectus muscle inferior rectus muscle superior rectus musclearrow_forward
- The sciatic nerve splits to form which two nerves? Question options: A) pudendal and common peroneal nerves B) femoral and tibial nerves C) pudendal and femoral nerves D) common fibular and tibial nerves E) pudendal and tibial nervesarrow_forwardCharles broke his leg playing softball. The fracture was a compound fracture of the fibula. After the cast was removed, he experienced difficulty dorsiflexing his foot. Which nerve was affected?arrow_forwardThe following event received worldwide attention in 1962: A boy playing in a train yard fell under a train, and his right arm was cut off cleanly by the wheels. Surgeons reattached the arm, sewing nerves and vessels back together. The surgery proceeded very well. The arm immediately regained its blood supply, yet the boy could not move the limb or feel anything in it for months. Explain why it took longer to reestablish innervation than circulation.arrow_forward
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