HUMAN ANAT+CNCT+POLLEV LBCC >IC<
14th Edition
ISBN: 9781259349461
Author: McKinley
Publisher: MCG CUSTOM
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Textbook Question
Chapter 16, Problem 9CR
What are the differences between withdrawal, stretch, and Golgi tendon reflexes?
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Several of the events that occur between the time a physician strikes apatient’s patellar tendon with a rubber hammer and the time the quadriceps femoris contracts (knee-jerk reflex) are listed below:(1) increased frequency of action potentials in sensory neurons(2) stretch of the muscle spindles(3) increased frequency of action potentials in the alpha motor neurons(4) stretch of the quadriceps femoris(5) contraction of the quadriceps femorisWhich of the following most closely describes the sequence ofevents as they normally occur?a. 4,1,2,3,5 c. 1,4,3,2,5 e. 4,2,3,1,5b. 4,1,3,2,5 d. 4,2,1,3,5
Describe what is the Stretch Reflex?
What are the components of a reflex arc and what is the difference between a somatic motor reflex and a visceral reflex arc?
Chapter 16 Solutions
HUMAN ANAT+CNCT+POLLEV LBCC >IC<
Ch. 16 - Prob. 1WYLCh. 16 - Prob. 2WYLCh. 16 - What is the function of the denticulate ligaments?Ch. 16 - Prob. 4WYLCh. 16 - Prob. 5WYLCh. 16 - Prob. 6WYLCh. 16 - Prob. 7WYLCh. 16 - Prob. 8WYLCh. 16 - Prob. 9WYLCh. 16 - Prob. 10WYL
Ch. 16 - Prob. 11WYLCh. 16 - Prob. 12WYLCh. 16 - Prob. 13WYLCh. 16 - Prob. 14WYLCh. 16 - Match each numbered item with the most closely...Ch. 16 - Prob. 1MCCh. 16 - Prob. 2MCCh. 16 - Identify the meningeal layer immediately deep to...Ch. 16 - Axons cross from one side of the spinal cord to...Ch. 16 - The radial nerve originates from the ______...Ch. 16 - Prob. 6MCCh. 16 - Prob. 7MCCh. 16 - Prob. 8MCCh. 16 - Prob. 9MCCh. 16 - Which statement is true about intercostal nerves?...Ch. 16 - Prob. 1CRCh. 16 - Where is the epidural space? What is housed there?Ch. 16 - Prob. 3CRCh. 16 - Where are the cervical plexuses located, and what...Ch. 16 - Prob. 5CRCh. 16 - Prob. 6CRCh. 16 - What muscles do the tibial and common fibular...Ch. 16 - Prob. 8CRCh. 16 - What are the differences between withdrawal,...Ch. 16 - Where are the basal plates of the neural tube, and...Ch. 16 - Prob. 1DCRCh. 16 - Prob. 2DCR
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- What is the major difference between monosynapticreflexes and polysynaptic reflexes?arrow_forwardWhy must the withdrawal reflex, but not the stretch reflex, involve a polysynaptic reflex arc?arrow_forwardThe reflex times for the Achilles Tendon Reflex and the Patellar Tendon Reflex should be different? Why?arrow_forward
- Do 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_forwardIdentify the Golgi tendon reflex (which is an innate reflex) as (a) spinal or cranial, (b) somatic or visceral, (c) monosynaptic or polysynaptic, and (d) ipsilateral or contralateral.arrow_forwardWhat is the difference between stretch reflexes and superficial cord reflexes?arrow_forward
- What is a withdrawal reflex? How do reciprocalinnervation and the crossed extensor reflex assist thewithdrawal reflex?arrow_forward2) The correct order of a reflex arc is: a) sensory neuron, sensory receptor, interneuron, motor neuron, effector b) sensory neuron, sensory receptor, interneuron, effector, motor neuron c) sensory receptor, sensory neuron, interneuron, motor neuron, effector d) sensory receptor, sensory neuron, interneuron, effector, motor neuronarrow_forward1) For each of the following reflexes, detail what the sensor is, the integrator, and the effector. Also note the neuronsinvolved in the reflex (like alpha motor neuron).a. Myotatic (stretch reflex)b. Autogenic Inhibition (Golgi tendon organ reflex)c. Flexor Reflex 2) You stimulate an alpha motor neuron and measure the force of contraction in a control muscle from a mouse. You then add Substance X, a newly synthesized product from your organic chemists. You observe that there is adecreased force of contraction following the same type of motor neuron stimulation.a. Draw your experimental setup and what force you measure before and after administering Substance X.Hint: You’ll need to include something to stimulate the muscle and something to measure the force. Whatyou measure is force upon stimulation (mN, milliNewtons) before and after addition of X.b. Hypothesize one way that Substance X could be inhibiting muscle contraction. Design an experiment…arrow_forward
- Describe a simple stretch reflex, a flexion reflex, and a crossedextension reflex?arrow_forwardDescribe how monosynaptic and polysynaptic reflex arcs differarrow_forwardThis is the general order of events for a reflex arc. a) information relayed to the CNS, activation of a sensory receptor, activation of a motor neuron, response by the effector b) response by the effector, activation of a motor neuron, information relayed to the CNS, activation of a sensory receptor c) activation of a sensory receptor, information relayed to the CNS, response by the effector, activation of a motor neuron d) activation of a sensory receptor, information relayed to the CNS, activation of a motor neuron, response by the effectorarrow_forward
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