SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Textbook Question
Chapter 12, Problem 1CT
Describe how stimulation of a neuron that has its cell body in the cerebrum can inhibit a reflex that is integrated within the spinal cord.
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Describe how stimulation of a neuron that has its cell body in thecerebrum can inhibit a reflex that is integrated within the spinal cord.
Identify the structures of a spinal nerve and describe the neural pathways of a reflex arc.
List and describe what is happening in each of the 5 steps of a spinal reflex arc. Assume that the reflex arc is polysynaptic.
Chapter 12 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Ch. 12.1 - Prob. 1AYPCh. 12.1 - Name the meninges surrounding the spinal cord....Ch. 12.1 - What is the thecal sac? What two structures hold...Ch. 12.1 - Describe the arrangement of gray arid white matter...Ch. 12.1 - Where are the cell bodies of somatic motor and...Ch. 12.1 - What kinds of neurons are in the dorsal roots, in...Ch. 12.2 - Prob. 7AYPCh. 12.2 - Describe the operation of a gamma motor neuron.Ch. 12.2 - Prob. 9AYPCh. 12.2 - Prob. 10AYP
Ch. 12.2 - Prob. 11AYPCh. 12.3 - Prob. 12AYPCh. 12.3 - What is a dermatome? Why are dermatomes clinically...Ch. 12.3 - Prob. 14AYPCh. 12.3 - Describe the distribution of the ventral rami of...Ch. 12.3 - Prob. 16AYPCh. 12.3 - Prob. 17AYPCh. 12.3 - Prob. 18AYPCh. 12.3 - Name the five major nerves that emerge from the...Ch. 12.3 - Name the four major nerves that arise from the...Ch. 12.3 - Prob. 21AYPCh. 12.3 - Describe the structures innervated by the...Ch. 12.3 - Prob. 23AYPCh. 12 - Prob. 1RACCh. 12 - The structure that anchors the inferior end of the...Ch. 12 - Prob. 3RACCh. 12 - Given these components of a reflex arc: (1)...Ch. 12 - Prob. 5RACCh. 12 - Several of the events that occur between the time...Ch. 12 - Prob. 7RACCh. 12 - Prob. 8RACCh. 12 - Damage to the dorsal ramus of a spinal nerve...Ch. 12 - Prob. 10RACCh. 12 - A dermatome Is the area of skin supplied by a pair...Ch. 12 - Prob. 12RACCh. 12 - The skin on the posterior surface of the hand is...Ch. 12 - The scatic nerve is actually two nerves combined...Ch. 12 - Prob. 15RACCh. 12 - Describe how stimulation of a neuron that has its...Ch. 12 - Prob. 2CTCh. 12 - Prob. 3CTCh. 12 - Prob. 4CTCh. 12 - Prob. 5CTCh. 12 - Prob. 6CTCh. 12 - Prob. 7CT
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- Complete transection of the spinal cord produces all of the following effects, except :-a- permanent loss of all sensations mediated by the cord below level of lesionb- permanent loss of voluntary movements by muscles innervated by the cord below level of lesionc- permanent loss of reflexes mediated by the cord below level of lesiond- temporary loss of micturition reflexesarrow_forwardAn individual has a spinal cord injury superior to the area involved in the patellar reflex circuit such that all communication to the brain is broken off. How would this affect the operation of the patellar reflex circuit?arrow_forwardExplain what is meant by a spinal reflex and how they are constructed. , you must have described the direction, named which nerve types are involved, and where the switching between these cells occurs. Please draw, but you must provide sufficient explanation in text so that the image can be understood. Give examples of a specific nerve reflex and describe how it works.arrow_forward
- Traumatic damage to the spinal cord is common. Based on the information in Figure 2 and Table 2, is it possible that an entire column of white matter could be damaged without causing any problems with movement? Explain your answer carefully and thoroughly.arrow_forwardDescribe and explain the importance of reflex pathways, including spinal reflexesarrow_forwardList the names nd functions of the three neurons involved in a reflex arc (eg. a spinal reflex) and briefly describe an advantage of coordinating responses with a spinal reflex (instead of with the brain).arrow_forward
- Name the following parts of the neuron as indicated. Specify the functions of each part. 1 7 2 5 4 3 Illustrate and explain the reflex arc. Illustrate and explain transmission of neuronal impulses across synapse.arrow_forwardName some visceral reflexes controlled by the spinal cord.arrow_forwarddescribe the structure and function of spinal cord as part of central nervous system .arrow_forward
- We know that a reflex arc is a circuit, but what are the nerve connections arc called?arrow_forwardsomatic motor fibers preganglionic visceral motor fibers postganglionic visceral motor fibers visceral somatic sensory fibers sensory fibers Dorsal root Dorsal ramus Dorsal ramus- Dorsal root ganglion Dorsal root Start Ventral ramus Ventral ramus Dorsal root ganglion Rami communicantes Rami communicantes Ventral Sympathetic ganglion root White ramus communicans Start Sympathetic Gray ramus communicans nerve Sympathetic nervearrow_forwardVisit this site (http://openstaxcollege.org/l/troublewstairs) to read about a woman that notices that her daughter is having trouble walking up the stairs. This leads to the discovery of a hereditary condition that affects the brain and spinal cord. The electromyography and MRI tests indicated deficiencies in the spinal cord and cerebellum, both of which are responsible for controlling coordinated movements. To what functional division of the nervous system would these structures belong?arrow_forward
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