Question 1

Discuss the importance of calcium ions in skeletal muscle contraction.

Accepted Answer

Calcium ions are necessary for myosin he

Question 2

What is covered by the endomysium?

Accepted Answer

A)  fascicles of muscle cells 
B)  an entire muscle 
C)  an individual muscle cell 
D)  myofibrils 
E)  smooth muscle only 
A)  fascicles of muscle cells 
B)  an entire muscle 
C)  an individual muscle cell 
D)  myofibrils 
E)  smooth muscle only

Question 3

Muscles will hypertrophy if they are not used continually.

Accepted Answer

A) True 
 B)False

Question 4

Match the following:
-Performs very slow, sometimes rhythmic, contractions

Accepted Answer

A) smooth muscle tissue 
B) cardiac muscle tissue 
C) skeletal muscle tissue 
A) smooth muscle tissue 
B) cardiac muscle tissue 
C) skeletal muscle tissue

Question 5

Why are calcium ions necessary for skeletal muscle contraction?

Accepted Answer

A)  Calcium ions increase the speed of the action potential transmitted along the sarcolemma. 
B)  Calcium ions release the inhibition on Z discs. 
C)  Calcium ions trigger the binding of myosin heads to actin filaments. 
D)  Calcium ions cause ATP binding to actin. 
E)  Calcium ions bind to regulatory proteins on the myosin filaments, changing both their shape and their position on the thick filaments. 
A)  Calcium ions increase the speed of the action potential transmitted along the sarcolemma. 
B)  Calcium ions release the inhibition on Z discs. 
C)  Calcium ions trigger the binding of myosin heads to actin filaments. 
D)  Calcium ions cause ATP binding to actin. 
E)  Calcium ions bind to regulatory proteins on the myosin filaments, changing both their shape and their position on the thick filaments.

Question 6

Like the biceps brachii muscle, which muscle is a prime mover in elbow flexion?

Accepted Answer

A)  triceps brachii 
B)  deltoid 
C)  brachioradialis 
D)  fibularis longus 
E)  brachialis 
A)  triceps brachii 
B)  deltoid 
C)  brachioradialis 
D)  fibularis longus 
E)  brachialis

Question 7

Which of the following is a type isometric exercise in which muscles increase in size and strength?

Accepted Answer

A)  swimming 
B)  biking 
C)  jogging 
D)  lifting weights 
E)  dancing 
A)  swimming 
B)  biking 
C)  jogging 
D)  lifting weights 
E)  dancing

Question 8

Using Figure 6.2, match the following:
-The endomysium that wraps individual muscle fibers 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 9

Which movement is opposite to abduction?

Accepted Answer

A)  flexion 
B)  rotation 
C)  circumduction 
D)  adduction 
E)  supination 
A)  flexion 
B)  rotation 
C)  circumduction 
D)  adduction 
E)  supination

Question 10

The arrangement of fascicles in orbicularis oris is ________.

Accepted Answer

A)  circular 
B)  convergent 
C)  pennate 
D)  fusiform 
A)  circular 
B)  convergent 
C)  pennate 
D)  fusiform

Question 11

Which of these muscles is the prime mover of elbow extension?

Accepted Answer

A)  brachialis 
B)  latissimus dorsi 
C)  deltoid 
D)  triceps brachii 
E)  biceps brachii 
A)  brachialis 
B)  latissimus dorsi 
C)  deltoid 
D)  triceps brachii 
E)  biceps brachii

Question 12

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 13

Match the following:
-Muscle tissue that is multinucleate

Accepted Answer

A) smooth muscle tissue 
B) cardiac muscle tissue 
C) skeletal muscle tissue 
A) smooth muscle tissue 
B) cardiac muscle tissue 
C) skeletal muscle tissue

Question 14

Skeletal muscle, as a whole, can generate different amounts of force, and different degrees of shortening, in response to stimuli. What is this concept called?

Accepted Answer

A)  graded response 
B)  twitch 
C)  fused, or complete, tetanus 
D)  incomplete, or unfused, tetanus 
E)  action potential 
A)  graded response 
B)  twitch 
C)  fused, or complete, tetanus 
D)  incomplete, or unfused, tetanus 
E)  action potential

Question 15

Plantar flexion at the ankle joint is accomplished by the tibialis anterior muscle.

Accepted Answer

A) True 
 B)False

Question 16

Neurotransmitters are released upon stimulation from a nerve impulse from the ________.

Accepted Answer

A)  myofibrils 
B)  sarcoplasmic reticulum 
C)  thick filaments 
D)  axon terminals of the motor neuron 
E)  sarcolemma of the muscle cell 
A)  myofibrils 
B)  sarcoplasmic reticulum 
C)  thick filaments 
D)  axon terminals of the motor neuron 
E)  sarcolemma of the muscle cell

Question 17

Using Figure 6.1, match the following:
-The A band within a myofibril 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

Match the following:
-Muscle tissue found only in the heart

Accepted Answer

A) smooth muscle tissue 
B) cardiac muscle tissue 
C) skeletal muscle tissue 
A) smooth muscle tissue 
B) cardiac muscle tissue 
C) skeletal muscle tissue

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

Which of the following consists of two large, flat muscles that cover the lower back?

Accepted Answer

A)  deltoid 
B)  biceps brachii 
C)  triceps brachii 
D)  latissimus dorsi 
E)  pectoralis major 
A)  deltoid 
B)  biceps brachii 
C)  triceps brachii 
D)  latissimus dorsi 
E)  pectoralis major

Discuss the importance of calcium ions in skeletal muscle contraction.

What is covered by the endomysium?

Muscles will hypertrophy if they are not used continually.

Match the following: -Performs very slow, sometimes rhythmic, contractions

Why are calcium ions necessary for skeletal muscle contraction?

Like the biceps brachii muscle, which muscle is a prime mover in elbow flexion?

Which of the following is a type isometric exercise in which muscles increase in size and strength?

Using Figure 6.2, match the following: -The endomysium that wraps individual muscle fibers is indicated by ________.

Which movement is opposite to abduction?

The arrangement of fascicles in orbicularis oris is ________.

Which of these muscles is the prime mover of elbow extension?

A sarcomere is ________.

Match the following: -Muscle tissue that is multinucleate

Skeletal muscle, as a whole, can generate different amounts of force, and different degrees of shortening, in response to stimuli. What is this concept called?

Plantar flexion at the ankle joint is accomplished by the tibialis anterior muscle.

Neurotransmitters are released upon stimulation from a nerve impulse from the ________.

Using Figure 6.1, match the following: -The A band within a myofibril is indicated by ________.

Match the following: -Muscle tissue found only in the heart

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

Which of the following consists of two large, flat muscles that cover the lower back?

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 Lymphatic System and Body Defenses

The Respiratory System

The Digestive System and Body Metabolism

The Urinary System

The Reproductive System

Filters

Exam 6: The Muscular System

Discuss the importance of calcium ions in skeletal muscle contraction.

What is covered by the endomysium?

Muscles will hypertrophy if they are not used continually.

Match the following: -Performs very slow, sometimes rhythmic, contractions

Why are calcium ions necessary for skeletal muscle contraction?

Like the biceps brachii muscle, which muscle is a prime mover in elbow flexion?

Which of the following is a type isometric exercise in which muscles increase in size and strength?

Using Figure 6.2, match the following: -The endomysium that wraps individual muscle fibers is indicated by ________.

Which movement is opposite to abduction?

The arrangement of fascicles in orbicularis oris is ________.

Which of these muscles is the prime mover of elbow extension?

A sarcomere is ________.

Match the following: -Muscle tissue that is multinucleate

Skeletal muscle, as a whole, can generate different amounts of force, and different degrees of shortening, in response to stimuli. What is this concept called?

Plantar flexion at the ankle joint is accomplished by the tibialis anterior muscle.

Neurotransmitters are released upon stimulation from a nerve impulse from the ________.

Using Figure 6.1, match the following: -The A band within a myofibril is indicated by ________.

Match the following: -Muscle tissue found only in the heart

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

Which of the following consists of two large, flat muscles that cover the lower back?

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 Lymphatic System and Body Defenses

The Respiratory System

The Digestive System and Body Metabolism

The Urinary System

The Reproductive System

Filters