1 Copyright © 2015 Pearson Education, Inc.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 ________.
- Label A
- Label B
- Label C
- Label D
Answer: B
Page Ref: 186
Bloom's: 1) Knowledge
2) The A band within a skeletal muscle fiber is indicated by ________.
- Label A
- Label B
- Label C
- Label D
Answer: A
Page Ref: 186
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2 Copyright © 2015 Pearson Education, Inc.3) The H zone, located within the A band, lacks thin filaments and is represented by ________.
- Label A
- Label B
- Label C
- Label D
Answer: D
Page Ref: 186
Bloom's: 1) Knowledge
4) The myofilament composed of actin is indicated by ________.
- Label A
- Label B
- Label C
- Label D
Answer: C
Page Ref: 186
Bloom's: 1) Knowledge
Using Figure 6.2, match the following:
5) The epimysium is represented by ________.
- Label A
- Label B
- Label C
- Label D
Answer: A
Page Ref: 183
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3 Copyright © 2015 Pearson Education, Inc.6) The perimysium wraps a fascicle of muscle cells and is represented by ________.
- Label A
- Label B
- Label C
- Label D
Answer: C
Page Ref: 183
Bloom's: 1) Knowledge
7) The muscle fiber (cell) is indicated by ________.
- Label A
- Label B
- Label C
- Label D
Answer: D
Page Ref: 183
Bloom's: 1) Knowledge
8) The endomysium that wraps individual muscle fibers is indicated by ________.
- Label A
- Label B
- Label C
- Label D
Answer: B
Page Ref: 183
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9) Striated involuntary muscle tissue is classified as ________ muscle.
- skeletal
- cardiac
- smooth
- either smooth or skeletal
Answer: B
Page Ref: 182
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10) The epimysium covering on the outside of the muscle can blend into cordlike ________ or sheetlike ________.
- tendons; aponeuroses
- ligaments; tendons
- fascia; ligaments
- aponeuroses; ligaments
Answer: A
Page Ref: 183
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4 Copyright © 2015 Pearson Education, Inc.11) The ________ is an organelle that wraps and surrounds the myofibril and stores calcium.
- cross bridge
- sarcomere
- sarcolemma
- 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 ________.
- elasticity
- irritability
- contractility
- extensibility
Answer: C
Page Ref: 187
Bloom's: 1) Knowledge
13) One neuron and all the skeletal muscles it stimulates is known as a ________.
- sarcoplasmic reticulum
- motor unit
- synaptic cleft
- 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.
- neuromuscular junctions
- synapses
- cross bridges
- 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 ________.
- synaptic cleft
- motor unit
- cross bridge
- H zone
Answer: A
Page Ref: 187
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5 Copyright © 2015 Pearson Education, Inc.16) When a skeletal muscle is fully contracted, the ________ are closer to the thick filaments.
- Z discs
- M lines
- cross bridges
- A bands
Answer: A
Page Ref: 191
Bloom's: 2) Comprehension
17) Anaerobic glycolysis requires ________ to make ATP.
- creatine phosphate
- oxygen
- glucose
- both oxygen and glucose
Answer: B
Page Ref: 193, 194
Bloom's: 1) Knowledge
18) A smooth, sustained contraction is called ________.
- fused, or complete, tetanus
- a twitch
- unfused, or incomplete, tetanus
- 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 ________.
- isotonic contractions
- twitches
- isometric contractions
- 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
________.
- innervation
- action
- insertion
- origin
Answer: D
Page Ref: 196-197
Bloom's: 1) Knowledge
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