Question 1

A muscle group that works with and assists the action of a prime mover is a(n) ________.

Accepted Answer

A)  antagonist only 
B)  fixator only 
C)  synergist only 
D)  antagonist and synergist 
E)  antagonist and fixator 
A)  antagonist only 
B)  fixator only 
C)  synergist only 
D)  antagonist and synergist 
E)  antagonist and fixator

Question 2

Using Figure 6.1, match the following:
-The H zone, located within the A band, lacks thin filaments and is represented by ________.

Accepted Answer

A)  Label A 
B)  Label B 
C)  Label C 
D)  Label D 
A)  Label A 
B)  Label B 
C)  Label C 
D)  Label D

Question 3

The deltoid is a prime mover of arm adduction.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following muscles closes the jaw?

Accepted Answer

A)  buccinator 
B)  zygomaticus 
C)  frontalis 
D)  sternocleidomastoid 
E)  both masseter and temporalis 
A)  buccinator 
B)  zygomaticus 
C)  frontalis 
D)  sternocleidomastoid 
E)  both masseter and temporalis

Question 5

Which type of muscle tissue contracts most quickly upon stimulation?

Accepted Answer

A)  skeletal 
B)  visceral 
C)  cardiac 
D)  smooth 
E)  tendons 
A)  skeletal 
B)  visceral 
C)  cardiac 
D)  smooth 
E)  tendons

Question 6

A sarcomere is ________.

Accepted Answer

A)  the nonfunctional unit of skeletal muscle 
B)  the contractile unit between two Z discs 
C)  the area between two intercalated discs 
D)  the wavy lines on the cell, as seen in a microscope 
E)  a compartment in a myofilament 
A)  the nonfunctional unit of skeletal muscle 
B)  the contractile unit between two Z discs 
C)  the area between two intercalated discs 
D)  the wavy lines on the cell, as seen in a microscope 
E)  a compartment in a myofilament

Question 7

Acetylcholine is ________.

Accepted Answer

A)  an ion pump on the postsynaptic membrane 
B)  a source of energy for muscle contraction 
C)  a component of thick myofilaments 
D)  an oxygen-binding protein 
E)  a neurotransmitter that stimulates skeletal muscle 
A)  an ion pump on the postsynaptic membrane 
B)  a source of energy for muscle contraction 
C)  a component of thick myofilaments 
D)  an oxygen-binding protein 
E)  a neurotransmitter that stimulates skeletal muscle

Question 8

Match the following:
-Primary action of the deltoid

Accepted Answer

A) flexion 
B) extension 
C) rotation 
D) adduction 
E) plantar flexion
F)supination
G)abduction
H)inversion 
A) flexion 
B) extension 
C) rotation 
D) adduction 
E) plantar flexion
F)supination
G)abduction
H)inversion

Question 9

Which of the following is an example of an isometric contraction?

Accepted Answer

A)  shaking the head as to say "no" 
B)  pushing against an immovable wall 
C)  bending the elbow 
D)  rotating the arm 
E)  nodding the head as to say "yes" 
A)  shaking the head as to say "no" 
B)  pushing against an immovable wall 
C)  bending the elbow 
D)  rotating the arm 
E)  nodding the head as to say "yes"

Question 10

The condition of skeletal muscle fatigue can be best explained by ________.

Accepted Answer

A)  the all-or-none law 
B)  the inability to generate sufficient quantities of ATP due to feedback regulation of synthesis 
C)  insufficient intracellular quantities of ATP due to excessive consumption 
D)  a total lack of ATP 
E)  inadequate numbers of mitochondria 
A)  the all-or-none law 
B)  the inability to generate sufficient quantities of ATP due to feedback regulation of synthesis 
C)  insufficient intracellular quantities of ATP due to excessive consumption 
D)  a total lack of ATP 
E)  inadequate numbers of mitochondria

Question 11

The deepest muscle of the abdominal wall is the transversus abdominis.

Accepted Answer

A) True 
 B)False

Question 12

Match the following:
-Type of movement that points the toes

Accepted Answer

A) flexion 
B) extension 
C) rotation 
D) adduction 
E) plantar flexion
F)supination
G)abduction
H)inversion 
A) flexion 
B) extension 
C) rotation 
D) adduction 
E) plantar flexion
F)supination
G)abduction
H)inversion

Question 13

Match the following:
-The movement of a limb toward the body midline

Accepted Answer

A) flexion 
B) extension 
C) rotation 
D) adduction 
E) plantar flexion
F)supination
G)abduction
H)inversion 
A) flexion 
B) extension 
C) rotation 
D) adduction 
E) plantar flexion
F)supination
G)abduction
H)inversion

Question 14

Which of the following can actually shorten during a muscle contraction?

Accepted Answer

A)  myosin filament 
B)  A band 
C)  actin filament 
D)  sarcomere 
E)  myofilament 
A)  myosin filament 
B)  A band 
C)  actin filament 
D)  sarcomere 
E)  myofilament

Question 15

Bundles of muscle fibers are known as aponeuroses.

Accepted Answer

A) True 
 B)False

Question 16

Discuss the role of the myosin heads in sliding filament theory.

Accepted Answer

The myosin heads attach to binding sites

Question 17

Using Figure 6.2, match the following:
-The muscle fiber (cell) is indicated by ________.

Accepted Answer

A)  Label A 
B)  Label B 
C)  Label C 
D)  Label D 
A)  Label A 
B)  Label B 
C)  Label C 
D)  Label D

Question 18

During skeletal muscle contraction, myosin heads attach to binding sites associated with ________.

Accepted Answer

A)  myosin filaments 
B)  actin filaments 
C)  Z discs 
D)  thick filaments 
E)  the H zone 
A)  myosin filaments 
B)  actin filaments 
C)  Z discs 
D)  thick filaments 
E)  the H zone

Question 19

Cardiac and skeletal muscle both possess striations.

Accepted Answer

A) True 
 B)False

Question 20

Match the following:
-Enzyme that breaks down acetylcholine (ACh)

Accepted Answer

A) calcium ions 
B) acetylcholine 
C) synaptic cleft 
D) sodium ions 
E) acetylcholinesterase
F)action potential 
A) calcium ions 
B) acetylcholine 
C) synaptic cleft 
D) sodium ions 
E) acetylcholinesterase
F)action potential

A muscle group that works with and assists the action of a prime mover is a(n) ________.

Using Figure 6.1, match the following: -The H zone, located within the A band, lacks thin filaments and is represented by ________.

The deltoid is a prime mover of arm adduction.

Which of the following muscles closes the jaw?

Which type of muscle tissue contracts most quickly upon stimulation?

A sarcomere is ________.

Acetylcholine is ________.

Match the following: -Primary action of the deltoid

Which of the following is an example of an isometric contraction?

The condition of skeletal muscle fatigue can be best explained by ________.

The deepest muscle of the abdominal wall is the transversus abdominis.

Match the following: -Type of movement that points the toes

Match the following: -The movement of a limb toward the body midline

Which of the following can actually shorten during a muscle contraction?

Bundles of muscle fibers are known as aponeuroses.

Discuss the role of the myosin heads in sliding filament theory.

Using Figure 6.2, match the following: -The muscle fiber (cell) is indicated by ________.

During skeletal muscle contraction, myosin heads attach to binding sites associated with ________.

Cardiac and skeletal muscle both possess striations.

Match the following: -Enzyme that breaks down acetylcholine (ACh)

The Human Body: An Orientation

Basic Chemistry

Cells and Tissues

Skin and Body Membranes

The Skeletal System

The Nervous System

Special Senses

The Endocrine System

Blood

The Cardiovascular System

The Respiratory System

The Digestive System and Body Metabolism

The Urinary System

The Reproductive System

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Exam 6: The Muscular System

A muscle group that works with and assists the action of a prime mover is a(n) ________.

Using Figure 6.1, match the following: -The H zone, located within the A band, lacks thin filaments and is represented by ________.

The deltoid is a prime mover of arm adduction.

Which of the following muscles closes the jaw?

Which type of muscle tissue contracts most quickly upon stimulation?

A sarcomere is ________.

Acetylcholine is ________.

Match the following: -Primary action of the deltoid

Which of the following is an example of an isometric contraction?

The condition of skeletal muscle fatigue can be best explained by ________.

The deepest muscle of the abdominal wall is the transversus abdominis.

Match the following: -Type of movement that points the toes

Match the following: -The movement of a limb toward the body midline

Which of the following can actually shorten during a muscle contraction?

Bundles of muscle fibers are known as aponeuroses.

Discuss the role of the myosin heads in sliding filament theory.

Using Figure 6.2, match the following: -The muscle fiber (cell) is indicated by ________.

During skeletal muscle contraction, myosin heads attach to binding sites associated with ________.

Cardiac and skeletal muscle both possess striations.

Match the following: -Enzyme that breaks down acetylcholine (ACh)

The Human Body: An Orientation

Basic Chemistry

Cells and Tissues

Skin and Body Membranes

The Skeletal System

The Nervous System

Special Senses

The Endocrine System

Blood

The Cardiovascular System

The Respiratory System

The Digestive System and Body Metabolism

The Urinary System

The Reproductive System

Filters