Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 13, Problem 4SQ
In the simplest kind of reflex______, directly signal ________, which act on muscle cells.
- a. sensory neurons; interneurons
- b. interneurons; motor neurons
- c. sensory neurons; motor neurons
- d. motor neurons; sensory neurons
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Which of these events occurs when a person steps on a tack with theright foot?a. The right foot is pulled away from the tack because of the Golgitendon reflex.b. The left leg is extended to support the body because of the stretchreflex.c. The flexor muscles of the right thigh contract, and the extensormuscles of the right thigh relax because of reciprocal innervation.d. Extensor muscles contract in both thighs because of the crossedextensor reflex
Which statement is correct about reflexes?
a. The patellar reflex tests the S1–S3 spinal nerve segments.
b. A hypoactive reflex may indicate damage to the neuromuscular junction.
c. The more hyperactive the reflex, the healthier the individual. d. A normal biceps reflex response is extension of the elbow when the biceps tendon is tapped.
All of the following are true concerning reflex arcs EXCEPT
A.they involve a few neurons and directly enter and immediately leave the spinal cord
B.they are used to prevent harm
C.they are subconscious and automatic
D.they only use the PNS and not the CNS
Chapter 13 Solutions
Human Biology (MindTap Course List)
Ch. 13 - Explain the difference between a sensory neuron,...Ch. 13 - What are the functional zones of a motor neuron?Ch. 13 - Define an action potential.Ch. 13 - What is a synapse? Explain the difference between...Ch. 13 - Explain what happens during synaptic integration.Ch. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - The nervous system senses, interprets, and issues...Ch. 13 - A neuron responds to adequate stimulation with...Ch. 13 - When action potentials arrive at a synapse between...
Ch. 13 - In the simplest kind of reflex______, directly...Ch. 13 - The accelerating flow of _______ ions through...Ch. 13 - Prob. 6SQCh. 13 - Prob. 7SQCh. 13 - Cerebrospinal fluid _____. a. fills cavities and...Ch. 13 - Match each region of the central nervous system...Ch. 13 - Prob. 1CTCh. 13 - In newborns and premature babies, the bloodbrain...Ch. 13 - Prob. 3CT
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