Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 29, Problem 2PL
Stretch reflex receptors are called
a. effectors.
b. muscle spindles.
c. interneurons.
d. motor neurons.
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Students have asked these similar questions
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
In the knee-jerk reflex, the afferent neurons
Select one:
a. innervate leg flexor muscles
b. are sensory neurons
c. innervate leg flexor and extensor muscles
d. innervate leg extensor muscles
e. are cranial nerves
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.
Chapter 29 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 29 - The impulse over a motor neuron will lead to a. an...Ch. 29 - Stretch reflex receptors are called a. effectors....Ch. 29 - Stretch reflexes include ail of the following...Ch. 29 - Prob. 4PLCh. 29 - Prob. 5PLCh. 29 - The quadriceps femoris is the effector muscle of...Ch. 29 - The posterior roots of spinal nerves contain the...Ch. 29 - The normal patellar reflex response involves...Ch. 29 - A withdrawal reflex employs...Ch. 29 - Interneurons in a withdrawal reflex are located in...
Ch. 29 - A reflex arc begins with the stimulation of a...Ch. 29 - Effectors of somatic reflex arcs are...Ch. 29 - Prob. 2.5ACh. 29 - The effector muscle of the patellar reflex is the...Ch. 29 - The sensory stretch receptors (muscle spindles) of...Ch. 29 - The posterior root of a spinal nerve contains the...Ch. 29 - The normal plantar reflex results in...Ch. 29 - Stroking the sole of the foot in infants results...Ch. 29 - In a stretch reflex arc, when the agonist muscle...Ch. 29 - Synapses, whether excitatory or inhibitory, occur...Ch. 29 - Prob. 2.13ACh. 29 - Prob. 2.14A
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- Descartes' version of the reflex arc was important for understanding the brain's role in sensation, perception and reactivity. Which feature of Descartes' reflex arc is comparable to neurotransmission through motor, inter, and sensory neurons in the present day reflex circuit? A) body activity B) External stimulus C) Valvules Opening D) Nerve stimulationarrow_forwardWhich of these tracts carries motor signals destined for the postural muscles? a. the gracile fasciculus b. the cuneate fasciculus c. the spinothalamic tract d. the vestibulospinal tract e. the tectospinal tractarrow_forwardDistinguish between the following types of reflexes: A) Somatic vs. Visceral (autonomic) reflex B) Monosynaptic vs. Polysynaptic reflex C) Ipsilateral vs. Contralateral vs. Bilateral (consensual) reflex D) Cranial vs. Spinal reflexarrow_forward
- All somatic reflexes share all of the following properties except a. they are quick. b. they are monosynaptic. c. they require stimulation. d. they are involuntary. e. they are stereotyped.arrow_forwardWhat are the components of a reflex arc and what is the difference between a somatic motor reflex and a visceral reflex arc?arrow_forwardA functional reflex requires a. only a sensory neuron and a motor neuron. b. a sensory neuron, the thalamus, and a motor neuron. c. the cerebral cortex and a motor neuron. d. only the cerebral cortex and the thalamus.arrow_forward
- Which of the following describes a stretch reflex?A. The receptor detects that a muscle is stretched, and sends a signal to contract it reflexively.B. The receptor detects that a muscle is contracted, and sends a signal to stretch it reflexively.arrow_forwardDefine the term stretch reflex and describe how such reflexes are used to anatomically localize SCIarrow_forwardSuppose a person has spinal cord damage at the cervical level. would this stop the knee-jerk reflex? How would it affect the plantar reflex? Explainarrow_forward
- Describe what is the Stretch Reflex?arrow_forwardEvents of reflex actions include all the following, except :-a- stimulation of sensory receptorsb- stimulation of central synapsesc- inhibition of sensory receptorsd- inhibition of central synapsesarrow_forwardWe know that a reflex arc is a circuit, but what are the nerve connections arc called?arrow_forward
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