LooseLeaf for Human Anatomy
5th Edition
ISBN: 9781259285271
Author: Michael McKinley Dr., Valerie O'Loughlin, Elizabeth Pennefather-O'Brien
Publisher: McGraw-Hill Education
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Question
Chapter 16, Problem 8CR
Summary Introduction
To determine:
The term reflex and difference between a reflex and muscle movement that can be consciously controlled.
Introduction:
Muscles can be defined as a collection of fibrous tissues in an organism. These fibrous tissues in the body have the ability to contract as a result of which movement of the parts of the body or maintaining of posture is possible.
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What is the role of the stretch reflex? The flexor reflex?
Chapter 16 Solutions
LooseLeaf for Human Anatomy
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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- A tap on the patellar tendon at the knee joint is used to test the knee-jerk reflex. All of the followings are correct, except ---------------------. The reflex starts with the 1a sensory neurons of the muscle spindle There is an excitatory stimulus to the motor pool of the extensor muscle There is a stimulation of the excitatory interneuron of the flexor muscle Excitation of the extensor muscle fibers causes the knee extension Muscle contraction depends on coordination between motor pools of antagonistic musclesarrow_forwardWhat are the neural pathways involved in the knee-jerk reflex?arrow_forwarda) Describe the processes involved in the knee-jerk reflex and explainwhy it is called a ‘monosynaptic’ reflex.b) While crawling across the floor a child accidentally places her righthand onto a piece of broken glass. How will the flexor muscles of herleft arm respond? What happens to the rest of her body?arrow_forward
- Why is an interneuron needed to provide reciprocal inhibition of the flexor muscle when an extensor muscle is activated?arrow_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_forwardSeveral 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. 4,2,1,3,5arrow_forward
- The motor neuron involved in reciprocal innervation of the withdrawal reflex inhibits the extensor muscles of the limb. Considering what you learned about stretch reflexes, why does this make sense?arrow_forwardWhat are the five reflex arc components for the Achilles Tendon Reflex? Receptor, the type of the receptor, the location The sensory neuron The control center The motor neuron The effectorarrow_forwardWhere are the lower motor neuron cell bodies that innervate the medial rectus muscle located? Abducens nucleus Oculomotor nucleus Facial nucleus Trochlear nucleusarrow_forward
- There 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_forwardA flexor withdrawal reflex shows all the following properties, except :-a- recruitmentb- prepotent c- non-fatigable d- irradiationarrow_forwardWhat are the five reflex arc components for the Plantar Reflex? Receptor, the type of the receptor, the location The sensory neuron The control center The motor neuron The effectorarrow_forward
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