Chapter 8: Control of Movement

Chapter 8: Control of Movement

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

Multiple-Choice Questions

 

8.1-1. The key deficit suffered by Mr. J. after a stroke involving his left parietal lobe was a(n)

1. inability to control his left hand.
2. problem in perceiving movement.
3. difficulty in reading.
4. inability to make movements on command.
5. inability to speak.

Difficulty: 1

Question ID:   8.1-1

Page Ref: 256

Topic:  Opening Vignette

Skill: Factual

Answer: d. an inability to make movements on command.

Rationale:  After suffering damage to his left parietal lobe, the key deficit suffered by Mr. J. was an inability to make movements on command.

 

8.1-2.  The ultimate function of our nervous system is to

1. control our behavior.
2. make decisions.
3. record our sensory experiences.
4. preserve our memories.
5. allow us to communicate with others.

Difficulty: 1

Question ID: 8.1-2

Page Ref: 256

Topic:  Introduction

Skill: Conceptual

Answer: a. control our behavior.

Rationale: The ultimate function of our nervous system is to control our behavior.

 

8.1-3.  Which of the following is true of skeletal muscle?

1. Contraction of skeletal muscle can alter blood flow through the heart.
2. Skeletal muscle contraction produces movements of the body.
3. Skeletal muscles pump blood throughout the body.
4. Flexion of a skeletal muscle causes limbs to move outward from the body.
5. Extensors are skeletal muscles that cause limbs to draw in to the body.

Difficulty: 1

Question ID: 8.1-3

Page Ref: 256-257

Topic:  Skeletal Muscle

Skill: Factual

Answer: b. Skeletal muscle contraction produces movements of the body.

Rationale:  It is correct that skeletal muscle contraction produces movements of the body.

 

8.1-4.  Our body movements are mediated by contraction of _______ muscle.

1. intrafusal
2. skeletal
3. cardiac
4. smooth
5. non-striated

Difficulty: 1

Question ID: 8.1-4

Page Ref: 256

Topic:  Skeletal Muscle

Skill: Factual

Answer: b. skeletal

Rationale: Our body movements are mediated by contraction of skeletal muscle.

 

8.1-5.  Muscle-builders show off their muscles by

1. activating their autonomic nervous system.
2. willing the activation of their extensor muscles.
3. willing the activation of their flexor muscles.
4. simultaneously contracting their flexor and extensor muscles.
5. ingesting large amounts of sympathomimetic drugs.

Difficulty: 2

Question ID: 8.1-5

Page Ref: 257

Topic:  Skeletal Muscle

Skill: Conceptual

Answer: d. simultaneously contracting their flexor and extensor muscles.

Rationale: Muscle-builders show off their muscles by simultaneously contracting their flexor and extensor muscles.

 

8.1-6.  The firing rate of the ________ determines the strength of contraction of a muscle.

1. intrafusal muscle fibers
2. Golgi tendon organs
3. afferent fibers
4. gamma motor neurons
5. alpha motor neurons

Difficulty: 2

Question ID: 8.1-6

Page Ref: 257

Topic:  Anatomy

Skill: Factual

Answer: e. alpha motor neurons

Rationale: The firing rate of the alpha motor neurons determines the strength of contraction of a muscle.