37- The intersegmental reflex arc is one in which: a- No target is present. b- No receptor is present. c- The sensory and motor neurons are separated by one or two segments. d- The course of the arc reflex traverses several segments of the CNS.

37- The intersegmental reflex arc is one in which: a- No target is present. b- No receptor is present. c- The sensory and motor neurons are separated by one or two segments. d- The course of the arc reflex traverses several segments of the CNS.

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter13: Anatomy Of The Nervous System

Section: Chapter Questions

Problem 32RQ: Which of these structures is not under direct control of the peripheral nervous system? trigeminal...

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Question

37- The intersegmental reflex arc is one in which:
a- No target is present.
b- No receptor is present.
c- The sensory and motor neurons are separated by one or two segments.
d- The course of the arc reflex traverses several segments of the CNS.

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44- An animal is suffering from exaggerated segment reflexes is due to a disorder in: a- Lower motor neuron C- Alpha motor neuron b- Upper motor neuron d- Gamma motor neuron
2) 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 neuron
1. The ventral horn of the spinal cord is where -------------------- would be found. A. visceral sensory neurons B. visceral motor neurons C. somatic motor neurons D. somatic sensory neurons 2. This 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 effector
47- Damage of motor neuron cortices on the left side of brain will cause: a- Left flexor muscles to be damaged. ET b- Right extensor muscles to be damaged. c- Left extensor muscles to be damaged. d- Right flexor muscles to be damaged.
5) Describe what would happen to the myotatic (stretch) reflex in each of the following conditions (get larger,smaller, stay the same, or disappear). Be sure to explain your answers and describe what part of the reflex hasbeen affected by the treatment.a. A complete transection of the spinal cord at the C5 level (look at the dermatome picture in the slides)b. Destruction of the cells in the dorsal root ganglionc. Synaptic depression at the Ia/motor neuron synapsed. Partial destruction of the ventral root
45. Compare and contrast the neural paths for a somatic reflex versus a visceral reflex.
Distinguish 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 reflex
1) 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
Which of these structures is not under direct control of the peripheral nervous system? trigeminal ganglion gastric plexus sympathetic chain ganglia cervical plexus
2) Place the parts of a reflex arc in proper order: (A)motor neuron (B)sensory neuron (C)sensory receptor (D)effector (E)interneuron Group of answer choices A) E, D, C, B, A b) D, B, E, A, C c) B, C, E, A, D d) C, B, E, A, D e) B, C, E, D, A
This 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 effector
Left Right 21. Which of the following types of neurons are indicated by asterisks in the photograph of a cross section of the spinal cord? A) Postganglionic parasympathetic B) Postganglionic sympathetic C) Preganglionic parasympathetic D) Preganglionic sympathetic