Test Bank of Chapter 6 The Muscular System I Essentials of Human Anatomy and Physiology 11e (Marieb)

Essentials of Human Anatomy and Physiology, 11e (Marieb)
Chapter 6 The Muscular System

6.1 Multiple Choice Part I Questions




Using Figure 6.1, match the following:

1) The I band within a skeletal muscle fiber is indicated by ________.
A) Label A
B) Label B
C) Label C
D) Label D
Answer: B
Page Ref: 186
Bloom's: 1) Knowledge

2) The A band within a skeletal muscle fiber is indicated by ________.
A) Label A
B) Label B
C) Label C
D) Label D
Answer: A
Page Ref: 186
Bloom's: 1) Knowledge

1
Copyright © 2015 Pearson Education, Inc.

,3) The H zone, located within the A band, lacks thin filaments and is represented by ________.
A) Label A
B) Label B
C) Label C
D) Label D
Answer: D
Page Ref: 186
Bloom's: 1) Knowledge

4) The myofilament composed of actin is indicated by ________.
A) Label A
B) Label B
C) Label C
D) Label D
Answer: C
Page Ref: 186
Bloom's: 1) Knowledge




Using Figure 6.2, match the following:

5) The epimysium is represented by ________.
A) Label A
B) Label B
C) Label C
D) Label D
Answer: A
Page Ref: 183
Bloom's: 1) Knowledge

2
Copyright © 2015 Pearson Education, Inc.

,6) The perimysium wraps a fascicle of muscle cells and is represented by ________.
A) Label A
B) Label B
C) Label C
D) Label D
Answer: C
Page Ref: 183
Bloom's: 1) Knowledge

7) The muscle fiber (cell) is indicated by ________.
A) Label A
B) Label B
C) Label C
D) Label D
Answer: D
Page Ref: 183
Bloom's: 1) Knowledge

8) The endomysium that wraps individual muscle fibers is indicated by ________.
A) Label A
B) Label B
C) Label C
D) Label D
Answer: B
Page Ref: 183
Bloom's: 1) Knowledge

9) Striated involuntary muscle tissue is classified as ________ muscle.
A) skeletal
B) cardiac
C) smooth
D) either smooth or skeletal
Answer: B
Page Ref: 182
Bloom's: 1) Knowledge

10) The epimysium covering on the outside of the muscle can blend into cordlike ________ or
sheetlike ________.
A) tendons; aponeuroses
B) ligaments; tendons
C) fascia; ligaments
D) aponeuroses; ligaments
Answer: A
Page Ref: 183
Bloom's: 1) Knowledge


3
Copyright © 2015 Pearson Education, Inc.

,11) The ________ is an organelle that wraps and surrounds the myofibril and stores calcium.
A) cross bridge
B) sarcomere
C) sarcolemma
D) sarcoplasmic reticulum
Answer: D
Page Ref: 187
Bloom's: 1) Knowledge

12) Muscle tissue has the ability to shorten when adequately stimulated, a characteristic known
as ________.
A) elasticity
B) irritability
C) contractility
D) extensibility
Answer: C
Page Ref: 187
Bloom's: 1) Knowledge

13) One neuron and all the skeletal muscles it stimulates is known as a ________.
A) sarcoplasmic reticulum
B) motor unit
C) synaptic cleft
D) neuromuscular junction
Answer: B
Page Ref: 187
Bloom's: 1) Knowledge

14) The heads of the myosin myofilaments are called ________ when they link the thick and thin
filaments together during skeletal muscle contraction.
A) neuromuscular junctions
B) synapses
C) cross bridges
D) motor units
Answer: C
Page Ref: 187
Bloom's: 1) Knowledge

15) The gap between the motor neuron and the muscle fiber it supplies at the neuromuscular
junction is called the ________.
A) synaptic cleft
B) motor unit
C) cross bridge
D) H zone
Answer: A
Page Ref: 187
Bloom's: 1) Knowledge
4
Copyright © 2015 Pearson Education, Inc.

, 16) When a skeletal muscle is fully contracted, the ________ are closer to the thick filaments.
A) Z discs
B) M lines
C) cross bridges
D) A bands
Answer: A
Page Ref: 191
Bloom's: 2) Comprehension

17) Anaerobic glycolysis requires ________ to make ATP.
A) creatine phosphate
B) oxygen
C) glucose
D) both oxygen and glucose
Answer: B
Page Ref: 193, 194
Bloom's: 1) Knowledge

18) A smooth, sustained contraction is called ________.
A) fused, or complete, tetanus
B) a twitch
C) unfused, or incomplete, tetanus
D) summing of contractions
Answer: A
Page Ref: 191-193
Bloom's: 1) Knowledge

19) Contractions in which muscles shorten and produce movement are known as ________.
A) isotonic contractions
B) twitches
C) isometric contractions
D) resistance exercises
Answer: C
Page Ref: 195
Bloom's: 1) Knowledge

20) The point of muscle attachment to an immovable or less movable bone is known as the
________.
A) innervation
B) action
C) insertion
D) origin
Answer: D
Page Ref: 196-197
Bloom's: 1) Knowledge


5
Copyright © 2015 Pearson Education, Inc.