ANTOMY AND PHYSIOLOGY
9th Edition
ISBN: 9781264325825
Author: SALADIN
Publisher: MCG
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Chapter 13, Problem 10WWTS
Summary Introduction
Introduction:
The reflexes are immediate or automatic involuntary action for response of an external stimulus. The reflex of external stimuli sends the signals through nerves to reach the spinal cord for an immediate action. The reflex actions control many functions, which include the protection (withdrawal effect of limbs) or body movements.
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When describing the reflex arcs and the neural pathways involved we often limit ourselves to the nerves carrying information from the muscle or tendon to the spinal cord and back. However, it should be clear from our ability to feel the tendon tap as well as the results from the Jendrassik’s maneuver test that it isn’t this simple. What other neural connections must be present ?
Describe the difference between an ipsilateral and contralateral reflex arc.
Why is the crossed extensor reflex classified as a contralateral reflex arc?
Chapter 13 Solutions
ANTOMY AND PHYSIOLOGY
Ch. 13.1 - Prob. 1BYGOCh. 13.1 - Prob. 2BYGOCh. 13.1 - Prob. 3BYGOCh. 13.1 - Prob. 4BYGOCh. 13.1 - Prob. 5BYGOCh. 13.1 - Prob. 1AYLOCh. 13.1 - Prob. 2AYLOCh. 13.1 - Prob. 3AYLOCh. 13.1 - Prob. 4AYLOCh. 13.1 - Prob. 5AYLO
Ch. 13.1 - Prob. 6AYLOCh. 13.1 - Prob. 7AYLOCh. 13.1 - Prob. 8AYLOCh. 13.1 - The position of the posterior and anterior horns...Ch. 13.1 - Prob. 10AYLOCh. 13.1 - Prob. 11AYLOCh. 13.1 - Prob. 12AYLOCh. 13.1 - Names and functions of the descending tractsCh. 13.1 - Prob. 14AYLOCh. 13.1 - Prob. 15AYLOCh. 13.1 - Prob. 16AYLOCh. 13.2 - Prob. 6BYGOCh. 13.2 - Prob. 7BYGOCh. 13.2 - Prob. 8BYGOCh. 13.2 - Prob. 9BYGOCh. 13.2 - Prob. 1AYLOCh. 13.2 - Prob. 2AYLOCh. 13.2 - Prob. 3AYLOCh. 13.2 - Prob. 4AYLOCh. 13.2 - Prob. 5AYLOCh. 13.2 - Prob. 6AYLOCh. 13.2 - Prob. 7AYLOCh. 13.2 - Prob. 8AYLOCh. 13.2 - Prob. 9AYLOCh. 13.2 - Prob. 10AYLOCh. 13.2 - Prob. 11AYLOCh. 13.2 - Prob. 12AYLOCh. 13.3 - Name five structural components of a typical...Ch. 13.3 - State the function of each of the following in a...Ch. 13.3 - Prob. 12BYGOCh. 13.3 - Prob. 13BYGOCh. 13.3 - Prob. 14BYGOCh. 13.3 - Prob. 1AYLOCh. 13.3 - The pathway and constituents of a somatic reflex...Ch. 13.3 - Prob. 3AYLOCh. 13.3 - Structure and function of muscle spindlesCh. 13.3 - Stretch reflexes; one or more examples; the...Ch. 13.3 - Prob. 6AYLOCh. 13.3 - Prob. 7AYLOCh. 13.3 - Prob. 8AYLOCh. 13.3 - Prob. 9AYLOCh. 13 - Below L2. the vertebral canal is occupied by a...Ch. 13 - Prob. 2TYRCh. 13 - Nerve fibers that adjust the tension in a muscle...Ch. 13 - A stretch reflex requires the action of _______ to...Ch. 13 - Prob. 5TYRCh. 13 - Prob. 6TYRCh. 13 - Prob. 7TYRCh. 13 - Prob. 8TYRCh. 13 - Prob. 9TYRCh. 13 - Prob. 10TYRCh. 13 - Prob. 11TYRCh. 13 - Prob. 12TYRCh. 13 - The cerebellum receives feedback from the muscles...Ch. 13 - In the ______ reflex, contraction of flexor...Ch. 13 - Prob. 15TYRCh. 13 - Prob. 16TYRCh. 13 - Prob. 17TYRCh. 13 - Prob. 18TYRCh. 13 - Prob. 19TYRCh. 13 - Prob. 20TYRCh. 13 - arachno-Ch. 13 - Prob. 2BYMVCh. 13 - Prob. 3BYMVCh. 13 - Prob. 4BYMVCh. 13 - Prob. 5BYMVCh. 13 - Prob. 6BYMVCh. 13 - Prob. 7BYMVCh. 13 - Prob. 8BYMVCh. 13 - Prob. 9BYMVCh. 13 - tecto-Ch. 13 - Prob. 1WWTSCh. 13 - Prob. 2WWTSCh. 13 - Prob. 3WWTSCh. 13 - Some spinal nerves are sensory and others are...Ch. 13 - Prob. 5WWTSCh. 13 - The anterior and posterior horns of the spinal...Ch. 13 - Prob. 7WWTSCh. 13 - Prob. 8WWTSCh. 13 - Prob. 9WWTSCh. 13 - Prob. 10WWTSCh. 13 - Jillian is thrown from a horse. She strikes the...Ch. 13 - Wallace is the victim of a hunting accident. A...Ch. 13 - Anthony gets into a fight between rival gangs As...Ch. 13 - Stand with your right shoulder, hip, and foot...Ch. 13 - When a patient needs a tendon graft, surgeons...
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- Describe how monosynaptic and polysynaptic reflex arcs differarrow_forwardWhat is affected by electrical signal sent by forth reflex arc structure?(This will be the fifth structure in the arc.)arrow_forwardA flexor withdrawal reflex shows all the following properties, except :-a- recruitmentb- prepotent c- non-fatigable d- irradiationarrow_forward
- An ipsilateral reflex arc is one in whicharrow_forwardWhat does each of the following terms mean in relation to reflex arcs? Monosynaptic, ipsilateral, polysynaptic, intersegmental, contralateral, and reciprocal innervation.arrow_forwardWhen a physician elicits the patellar reflex, what physiological activities are being examined? List four. (Hint: think of the function of each component of the reflex pathway).arrow_forward
- Ben was cooking some steaks and burgers on the BBQ when he accidently touched the hot plate and withdrew his hand immediately . Explain the neural pathway and refer to the key components of the withdrawl reflex arc.arrow_forwardWhy is it important to study reflexes? What clinical applications might these have? Describe a simple reflex arc.arrow_forwardName the parts of a monosynaptic and of a polysynapticreflex arc. What is a reflex? Explain how reflexes arehomeostatic.arrow_forward
- Why is response time in a monosynaptic reflex much faster than response time in a polysynaptic reflex?arrow_forwardDo you think the patellar reflex would be inhibited or enhanced by actively contracting the quadriceps muscle group? With an understanding of how muscle spindle fibers work, explain how active contraction of a muscle might affect the myotactic reflex. [hint: try to elicit a knee jerk reflex when someone is doing a leg lift]arrow_forwardWhy can polysynaptic reflexes produce more complex responses than can monosynaptic reflexes?arrow_forward
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