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Chapter 9: Muscular System: Histology and Physiology
Multiple Choice
1. The capacity of a muscle cell to shorten forcefully is known as
A) contractility.
B) excitability.
C) extensibility.
D) elasticity.
E) flexibility.
Answer: a
Level: 1
2. Muscles exhibit the property of excitability. This means that the muscle
A) shortens its length.
B) recoils to its original resting length.
C) stretches beyond its normal length.
D) responds to stimulation by the nervous system.
E) excites itself.
Answer: d
Level: 1
3. Identify the statement concerning general functional characteristics of muscle that is true.
A) Muscle tissue shortens forcefully but lengthens passively.
B) Muscle tissue shortens passively but lengthens forcefully.
C) Muscle tissue can get shorter, but can not get longer.
D) Muscle tissue can get longer, but can not get shorter.
E) None of the above statements are true.
Answer: a
Level: 1
4. Identify the statement concerning skeletal muscle that is true.
A) It comprises about 20% of the body's weight.
B) It propels urine through the urinary tract.
C) Its function is largely under involuntary control.
D) It is a kind of connective tissue.
E) It is responsible for locomotion.
Answer: e
Level: 1
5. Which of the following actions is caused by contraction of skeletal muscle?
A) contraction of the heart
B) moving your feet in walking
C) movement of food through the G.I. tract
D) emptying of the urinary bladder
E) vasoconstriction
Answer: b
Level: 2
6. Smooth muscle and cardiac muscle are similar in that they both
A) are under involuntary control.
B) are striated.
C) are widely distributed in the body.
D) have multiple nuclei.
E) are under voluntary control.
Answer: a
Level: 1
7. Which of the following is true?
A) Skeletal muscle is capable of spontaneous contraction.
B) Smooth muscle is found in the walls of hollow organs.
C) Cardiac muscle cells have multiple nuclei.
D) Smooth muscle cells
Multiple Choice
1. The capacity of a muscle cell to shorten forcefully is known as
A) contractility.
B) excitability.
C) extensibility.
D) elasticity.
E) flexibility.
Answer: a
Level: 1
2. Muscles exhibit the property of excitability. This means that the muscle
A) shortens its length.
B) recoils to its original resting length.
C) stretches beyond its normal length.
D) responds to stimulation by the nervous system.
E) excites itself.
Answer: d
Level: 1
3. Identify the statement concerning general functional characteristics of muscle that is true.
A) Muscle tissue shortens forcefully but lengthens passively.
B) Muscle tissue shortens passively but lengthens forcefully.
C) Muscle tissue can get shorter, but can not get longer.
D) Muscle tissue can get longer, but can not get shorter.
E) None of the above statements are true.
Answer: a
Level: 1
4. Identify the statement concerning skeletal muscle that is true.
A) It comprises about 20% of the body's weight.
B) It propels urine through the urinary tract.
C) Its function is largely under involuntary control.
D) It is a kind of connective tissue.
E) It is responsible for locomotion.
Answer: e
Level: 1
5. Which of the following actions is caused by contraction of skeletal muscle?
A) contraction of the heart
B) moving your feet in walking
C) movement of food through the G.I. tract
D) emptying of the urinary bladder
E) vasoconstriction
Answer: b
Level: 2
6. Smooth muscle and cardiac muscle are similar in that they both
A) are under involuntary control.
B) are striated.
C) are widely distributed in the body.
D) have multiple nuclei.
E) are under voluntary control.
Answer: a
Level: 1
7. Which of the following is true?
A) Skeletal muscle is capable of spontaneous contraction.
B) Smooth muscle is found in the walls of hollow organs.
C) Cardiac muscle cells have multiple nuclei.
D) Smooth muscle cells