SPHE421_Quiz2 ALL ANSWERS 100% CORRECT FALL-2021/2022 LATEST SOLUTION GUARANTEED GRADE A+

The “stress-response” and stimulation part of the autonomic nervous system (ANS) is the sympathetic nervous system. True Fals e Answer Key:True Question 2 of 25 4.0 / 4.0 Points The white fatty substance present in the central nervous system (CNS) and peripheral nervous system (PNS) that serves to increase the speed of impulse conduction is called A. a tract B. a neuron C. the node of Ranvier D. myelin Answer Key:D Question 3 of 25 4.0 / 4.0 Points The innermost layer of the protective membrane that contains the blood vessels to the brain is the A. dura mater B. pia mater C. subacrachnoid mater D. ventricular mater Answer Key:B Question 4 of 25 4.0 / 4.0 Points At which level of the spinal column is damage to the spinal cord no longer a concern? A. T8 B. C7 C. L1 D. T10 Answer Key:C Question 5 of 25 4.0 / 4.0 Points The nerve plexus formed by the rami of C5 through T1 is called the A. cervical plexus B. lumbosacral plexus C. thoracic plexus D. brachial plexus Answer Key:D Question 6 of 25 4.0 / 4.0 Points A person with weakness of knee extension has damage to which of the following nerves? A. femoral nerve B. common peroneal nerve C. median nerve D. radial nerve Answer Key:A Question 7 of 25 4.0 / 4.0 Points A common pathology of the PNS characterized by weakness of the long thoracic nerve is which of the following? A. carpal tunnel syndrome B. Bell's palsy C. thoracic outlet syndrome D. scapular winging Answer Key:D Question 8 of 25 4.0/ 4.0 Points Sensory impulses from the peripheral nervous system (PNS) enter the cord through the anterior horn. True Fals e Rationale: Sensory impulses enter through the posterior horn of the spinal cord Answer Key:False Question 9 of 25 4.0 / 4.0 Points A common pathology of the CNS characterized by issues with production, absorption, or flow of cerebrospinal fluid is which of the following? A. Autonomic dysreflexia B. Spina bifida C. Brown-Séquard’s syndrome D. Hydrocephalus Answer Key:D Question 10 of 25 4.0 / 4.0 Points Which of the following is NOT true of a concentric contraction? A. Muscle attachments move closer together. B. Movement occurs against gravity C. This type of contraction produces less of a force than an eccentric contraction. D. A concentric contraction is an acceleration activity. Answer Key:C Question 11 of 25 4.0 / 4.0 Points You can make a tighter fist with your wrist extended than with your wrist flexed because of A. passive insufficiency of the finger extensors. B. active insufficiency of the finger extensors C. active insufficiency of the finger flexors. D. passive insufficiency of the finger flexors Answer Key:C