Fundamentals of Anatomy & Physiology (10th Edition)
10th Edition
ISBN: 9780321909077
Author: Frederic H. Martini, Judi L. Nath, Edwin F. Bartholomew
Publisher: PEARSON
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Chapter 13, Problem 20CP
Summary Introduction
To determine:
The reflex that occurred when a weight lifter, who is straining to lift the weight above his head, brings the barbell to his chests, and then drops it because the muscles of his arm relaxed.
Introduction:
Reflex is the term given to instantaneous and automated response to a particular stimulus. This kind of stimulation causes the utilization of the reflex arc. Reflex arc is the path followed by the signals which are induced by specific stimulation. There are two different types of reflexes namely monosynaptic reflex that includes the postural reflex and stretch reflex, and the polysynaptic reflex that includes tendon reflex, withdrawal reflex, crossed extensor reflex.
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Chapter 13 Solutions
Fundamentals of Anatomy & Physiology (10th Edition)
Ch. 13 - Name the structures of the central nervous system...Ch. 13 - Define spinal reflex.Ch. 13 - Identify the three spinal meninges.Ch. 13 - Prob. 4CPCh. 13 - Prob. 5CPCh. 13 - Differentiate between sensory nuclei and motor...Ch. 13 - Prob. 7CPCh. 13 - Prob. 8CPCh. 13 - Prob. 9CPCh. 13 - Prob. 10CP
Ch. 13 - Injury to which of the nerve plexuses would...Ch. 13 - Compression of which nerve produces the sensation...Ch. 13 - Prob. 13CPCh. 13 - Prob. 14CPCh. 13 - Prob. 15CPCh. 13 - Prob. 16CPCh. 13 - Prob. 17CPCh. 13 - Prob. 18CPCh. 13 - Prob. 19CPCh. 13 - Prob. 20CPCh. 13 - Prob. 21CPCh. 13 - Prob. 22CPCh. 13 - Prob. 23CPCh. 13 - LEVEL 1 Reviewing Facts and Terms 1. Label the...Ch. 13 - Prob. 2RQCh. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - Prob. 9RQCh. 13 - Prob. 10RQCh. 13 - The reflexes that control the most rapid,...Ch. 13 - Prob. 12RQCh. 13 - Prob. 13RQCh. 13 - Prob. 14RQCh. 13 - Proceeding deep from the most superficial...Ch. 13 - Prob. 16RQCh. 13 - Prob. 17RQCh. 13 - Polysynaptic reflexes can produce far more...Ch. 13 - Prob. 19RQCh. 13 - Prob. 20RQCh. 13 - Prob. 21RQCh. 13 - Prob. 22RQCh. 13 - Prob. 23RQCh. 13 - Prob. 24RQCh. 13 - Prob. 25RQCh. 13 - Prob. 26RQCh. 13 - Prob. 27RQCh. 13 - Prob. 28RQCh. 13 - The improper use of crutches can produce a...Ch. 13 - Prob. 30RQCh. 13 - Karen falls down a flight of stairs and suffers...Ch. 13 - Will Joe regain motor or sensory activity in his...Ch. 13 - Prob. 2CC
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- 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_forwardThere are reflex arcs that employ a gamma motor neuron wrapped around a muscle spindle and involve no interneurons. Which is NOT an appropriate example of these reflex arcs among the following? patellar reflex achilles reflex inverted supinator reflex C5 reflex arcsarrow_forward
- Using a reflex hammer, which of the following reflexes are assessed to determine the patient's neurologic condition? I. Patellar reflex and Babinski reflex II. Achilles tendon reflex and Triceps reflex III. Brachial reflex and Pupillary reflex IV. Plantar reflex and Pharyngeal reflexarrow_forwardWhich of the following is true of cross-extensor reflexes? in the leg that sensed the pain, the flexor relaxes in the leg that sensed the pain, the extensor contracts in the opposite leg, the extensor is activated in the opposite leg the flexor is activatedarrow_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
- Select the best answer or answers from the choices given: A reflex that causes reciprocal activation of the antagonist muscle is the (a) crossed-extensor, (b) flexor, (c) tendon, (d) muscle stretch.arrow_forwardThe reflex times for the Achilles Tendon Reflex and the Patellar Tendon Reflex should be different? Why?arrow_forwardWhen 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 ?arrow_forward
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