FREE AND STUDY GAMES ABOUT UNIT 4 CHAPTER 13

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FREE AND STUDY GAMES ABOUT UNIT 4 CHAPTER 13

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -36 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: The spinal cord contains ascending and descending nerve fibers that send information between the CNS and the periphery. This illustrates which function of the spinal cord?

Answer:

Conduction

Question 2: The anterior rami of spinal nerves form which nerve plexuses?

Cervical, lumbar, sacral Thoracic, lumbar, sacral Cervical, thoracic, lumbar Cervical, thoracic, sacral

Answer:

Cervical, lumbar, sacral

Question 3: Where are muscle spindles?

Answer:

Embedded in muscles Question 4: Which are a series of fibrous connective tissue membranes covering the central nervous system?

Answer:

Meninges Question 5: Place the meninges in order from superficial (at the top) to deep (at the bottom).

Answer:

Dura mater arachnoid mater pia mater Question 6: How many spinal nerves are in each region of the spinal cord in order from superior to inferior?

Answer:

8,12,5,5,1

Question 7: Which occurs in a flexor reflex?

Answer:

Withdrawal of a limb from a harmful stimulus Question 8: What is a quick, involuntary, stereotyped response to a stimulus is called?

Answer:

Reflex Question 9: Within the spinal cord, which tracts carry motor signals down from the brain?

Answer:

Descending

Question 10: Which structures contribute to nerve plexuses?

Answer:

Anterior rami

Question 11: White matter has a pearly white appearance due to the presence of which of the following?Glial cells Fibrous connective tissue Dendrites Myelin

Answer:

Myelin

Question 12: Which viral disease results in the destruction of motor neurons?

Answer:

Poliomyelitis

Question 13: A nerve fiber refers to which part of a neuron?

Answer:

Axon Question 14: How many spinal nerves are there in order from superior (top) to inferior (bottom)?

Answer:

• cervical

12 thoracic

• lumbar
• sacral
• coccygeal

Question 15: What is a muscle spindle?

Answer:

A type of stretch receptor embedded in skeletal muscle

Question 16: True or False: Severing a sensory nerve root will completely deaden sensation from a dermatome.

Answer:

False

Question 17: In an adult, the spinal cord ends at which vertebra?

Answer:

L1

Question 18: Which reflex occurs in response to excessive tension on a tendon?

Answer:

Inhibition of the muscle Question 19: True or false: The flexor reflex uses an ipsilateral reflex arc.

Answer:

True The flexion resulting from a flexor reflex occurs on the same side of the body and is ipsilateral.Question 20: The poliovirus destroys which neurons in the brainstem and anterior horn of the spinal cord?

Answer:

Motor

Question 21: The crossed ________ reflex is contralateral.

Answer:

Extension Question 22: A reflex that occurs in response to excessive tension on a tendon is called a(n) _______ reflex

Answer:

Tendon