FREE AND STUDY GAMES ABOUT THE SC,SN,SR EXAM

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FREE AND STUDY GAMES ABOUT THE SC,SN,SR EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -73 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Enlargements of the spinal cord occur

Answer:

in those spinal segments that control the limbs

Question 2: The ventral root of a spinal nerve contains

Answer:

axons of motor neurons.

Question 3: In an adult, the conus medullaris is found at about

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L1 Question 4: The postganglionic fibers that connect an autonomic ganglion in the thoracic or lumbar region with the spinal nerve are

Answer:

gray rami communicantes

Question 5: Spinal nerves from the sacral region of the cord innervate the ________ muscles

Answer:

leg Question 6: The ventral rami of spinal nerves C5 to T1 contribute fibers to the ________ plexus

Answer:

brachial

Question 7: A dorsal and ventral root of each spinal segment unite to form a

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spinal nerve Question 8: The layer of connective tissue that surrounds individual axons within a peripheral nerve is termed the

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endoneurium

Question 9: The subdural space lies between

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the dura mater and the arachnoid mater Question 10: All of the following are true of polysynaptic reflexes, except that the

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are arranged according to dermatomes

Question 11: Spinal nerves are

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both sensory and motor Question 12: Mary is in an automobile accident and suffers a spinal cord injury. She has lost feeling in her lower body. Her doctor tells her that swelling is compressing a portion of her spinal cord. Which part of her cord is likely to be compressed

Answer:

ascending tracts

Question 13: The white matter of the spinal cord is mainly

Answer:

myelinated axons Question 14: The reflex that prevents a muscle from exerting too much tension is the ________ reflex

Answer:

tendon Question 15: The ________ of each spinal nerve innervates the skin and muscles of the back.

Answer:

dorsal ramus Question 16: In the spinal cord, white matter is separated into ascending and descending tracts organized as

Answer:

Colums Question 17: Reflexes based on synapses formed during development are ________ reflexes

Answer:

innate

Question 18: Nerve tracts or fasciculi make up the

Answer:

anterior white columns

Question 19: The spinal cord continues to elongate until about age

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• years.

Question 20: Bill contracts a viral disease that destroys cells in the posterior gray horns in his spinal cord. As a result, which of the following would you expect?

Answer:

loss of sensation in his torso

Question 21: The ________ nerve, which arises in the cervical plexus, innervates the diaphragm

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phrenic Question 22: After age ________ the vertebral column continues to elongate, but the spinal cord itself does not

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4 Question 23: Axons crossing from one side of the spinal cord to the other within the gray matter are found in the

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gray commissures

Question 24: Which of the following associations is incorrect

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11 thoracic spinal nerves

Question 25: The tough, fibrous, outermost covering of the spinal cord is the

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dura mater

Question 26: The spinal cord consists of five regions and________ segments

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31 Question 27: Samples of CSF for diagnostic purposes are normally obtained by placing the tip of a needle in the

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subarachnoid space Question 28: Somatic motor neurons in the spinal cord control all of the following muscles, except those that

Answer:

move the neck