Question 1

Match each muscle with its function or description.
a.sternocleidomastoid
j.latissimus dorsi
b.frontalis
k.brachialis
c.trapezius
l.triceps brachii
d.external intercostals
m.brachioradialis
e.internal intercostals
n.quadriceps femoris
f.rectus abdominis
o.sartorius
g.transverse abdominal
p.iliopsoas
h.deltoid
q.gastrocnemius
i.pectoralis major
-Flexes the head

Accepted Answer

The answer of Match each muscle with its function or...

Question 2

The epimysium of a muscle sometimes extends past as a flat sheet of connective tissue called an ____________________ that then fuses with the covering of another muscle.

Accepted Answer

The answer of The epimysium of a muscle sometimes extends...

Question 3

Between the end of a motor nerve and a muscle fiber is a narrow space called a ____________________.

Accepted Answer

The answer of Between the end of a motor nerve...

Question 4

What is the chief function of T tubules?

Accepted Answer

A)   They allow electrical impulses to travel deep into the cell.
B)   They store the calcium ions necessary for muscle contraction.
C)   They contain myofilaments necessary for muscle contraction.
D)   They store glycogen and oxygen.E) A) and D)
F) A) and C)

Question 5

Match each muscle with its function or description.
a.sternocleidomastoid
j.latissimus dorsi
b.frontalis
k.brachialis
c.trapezius
l.triceps brachii
d.external intercostals
m.brachioradialis
e.internal intercostals
n.quadriceps femoris
f.rectus abdominis
o.sartorius
g.transverse abdominal
p.iliopsoas
h.deltoid
q.gastrocnemius
i.pectoralis major
-Flexes the lumbar region of the spinal cord to cause bending over at the waist

Accepted Answer

The answer of Match each muscle with its function or...

Question 6

What are fascicles?

Accepted Answer

A)   Muscle cells
B)   Groups of muscle fibers
C)   Types of tendons
D)   Neurons that innervate musclesE) A) and B)
F) A) and C)

Question 7

Thick myofilaments consist of a protein called ____________________, whereas thin myofilaments consist of a protein called ____________________.

Accepted Answer

The answer of Thick myofilaments consist of a protein called...

Question 8

In an ____________________ contraction, the tension in the muscle increases whereas its length remains the same.

Accepted Answer

The answer of In an ____________________ contraction, the tension in...

Question 9

Which statement correctly describes the sequence of events in muscle contraction?

Accepted Answer

A)   An impulse triggers the release of acetylcholine (ACh) , which diffuses across the synaptic cleft to stimulate the sarcolemma to release ATP. The ATP triggers the actin and myosin filaments to shorten, and muscle contraction occurs.
B)   An impulse triggers the release of acetylcholinesterase into the synaptic cleft. This causes calcium ions to be pumped into the T tubules. The calcium allows the myosin heads to latch on to the actin filaments and muscle contraction occurs.
C)   An impulse triggers the release of acetylcholine (ACh) , which diffuses across the synaptic cleft to stimulate the T tubules to release calcium. The calcium binds with troponin on the actin filaments, which permits the myosin heads to latch on and muscle contraction occurs.
D)   An impulse triggers the release of acetylcholine (ACh) . This stimulates the sarcolemma, which sends an impulse to the actin and myosin filaments. The myosin heads then latch on to the actin filaments, pulling the Z disks closer together, and muscle contraction occurs.E) C) and D)
F) B) and D)

Question 10

A skeletal muscle cell is called a ____________________.

Accepted Answer

The answer of A skeletal muscle cell is called a...

Question 11

The continuous state of partial contraction that allows you to stand and hold your head up is called ____________________.

Accepted Answer

The answer of The continuous state of partial contraction that...

Question 12

Match each muscle with its function or description.
a.sternocleidomastoid
j.latissimus dorsi
b.frontalis
k.brachialis
c.trapezius
l.triceps brachii
d.external intercostals
m.brachioradialis
e.internal intercostals
n.quadriceps femoris
f.rectus abdominis
o.sartorius
g.transverse abdominal
p.iliopsoas
h.deltoid
q.gastrocnemius
i.pectoralis major
-Elevate the ribs during inspiration

Accepted Answer

The answer of Match each muscle with its function or...

Question 13

A lack of use causes a muscle to shrink, or ____________________.

Accepted Answer

The answer of A lack of use causes a muscle...

Question 14

Match each muscle with its function or description.
a.sternocleidomastoid
j.latissimus dorsi
b.frontalis
k.brachialis
c.trapezius
l.triceps brachii
d.external intercostals
m.brachioradialis
e.internal intercostals
n.quadriceps femoris
f.rectus abdominis
o.sartorius
g.transverse abdominal
p.iliopsoas
h.deltoid
q.gastrocnemius
i.pectoralis major
-Flexes the thigh

Accepted Answer

The answer of Match each muscle with its function or...

Question 15

How do the muscles of a sprinter running the 400-yard dash in 50 seconds receive most of their energy?

Accepted Answer

A)   The aerobic respiration of fatty acids
B)   The breakdown of creatine phosphate
C)   The anaerobic respiration of glucose
D)   The aerobic respiration of glucoseE) A) and B)
F) A) and C)

Question 16

According to the sliding-filament model of contraction, how does muscle contraction occur?

Accepted Answer

A)   The myosin heads propel the actin myofilaments toward the center of the sarcomere; this pulls the Z disks closer together, which shortens the sarcomere and the entire muscle.
B)   The actin heads propel the myosin filaments toward the center of the sarcomere; this pulls the Z disks closer together, which shortens the sarcomere and the entire muscle.
C)   The myosin heads propel the actin myofilaments toward the center of the sarcomere. This causes the myofilaments to shorten, which pulls the Z disks closer together to shorten the sarcomere and the entire muscle.
D)   Both the actin and myosin myofilaments shorten, which shrinks the sarcomere and pulls the Z disks closer together. As the Z disks move closer together, the muscle contracts.E) A) and C)
F) A) and B)

Question 17

The minimum voltage needed to cause a muscle fiber to contract is called the ____________________.

Accepted Answer

The answer of The minimum voltage needed to cause a...

Question 18

Which of the following correctly describes skeletal muscle?

Accepted Answer

A)   It is known as voluntary muscle.
B)   It consists of short, branching fibers that fit together at intercalated discs.
C)   It is found in the digestive tract, blood vessels, and airways.
D)   It is called nonstriated because it does not appear striped when examined under a microscope.E) A) and B)
F) B) and C)

Question 19

Most skeletal muscles remain in a state of

Accepted Answer

A)   relaxation.
B)   treppe.
C)   incomplete tetanus.
D)   complete tetanus.E) None of the above
F) All of the above

Question 20

What is the name of the connective tissue that surrounds the muscle as a whole?

Accepted Answer

A)   Endomysium
B)   Epimysium
C)   Perimysium
D)   PeriosteumE) None of the above
F) A) and B)

Exam 9: Muscular System

The continuous state of partial contraction that allows you to stand and hold your head up is called ____________________.

Correct Answer
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A skeletal muscle cell is called a ____________________.

Correct Answer
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Correct Answer
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Which statement correctly describes the sequence of events in muscle contraction?

Correct Answer
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Which of the following correctly describes skeletal muscle?

Correct Answer
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Correct Answer
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According to the sliding-filament model of contraction, how does muscle contraction occur?

Correct Answer
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In an ____________________ contraction, the tension in the muscle increases whereas its length remains the same.

Correct Answer
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Between the end of a motor nerve and a muscle fiber is a narrow space called a ____________________.

Correct Answer
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What is the name of the connective tissue that surrounds the muscle as a whole?

Correct Answer
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How do the muscles of a sprinter running the 400-yard dash in 50 seconds receive most of their energy?

Correct Answer
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Most skeletal muscles remain in a state of

Correct Answer
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What are fascicles?

Correct Answer
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What is the chief function of T tubules?

Correct Answer
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The epimysium of a muscle sometimes extends past as a flat sheet of connective tissue called an ____________________ that then fuses with the covering of another muscle.

Correct Answer
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A lack of use causes a muscle to shrink, or ____________________.

Correct Answer
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The minimum voltage needed to cause a muscle fiber to contract is called the ____________________.

Correct Answer
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Correct Answer
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Thick myofilaments consist of a protein called , whereas thin myofilaments consist of a protein called .

Correct Answer
verified

Exam 9: Muscular System

The continuous state of partial contraction that allows you to stand and hold your head up is called ____________________.

Correct AnswerverifiedShow Answer

A skeletal muscle cell is called a ____________________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which statement correctly describes the sequence of events in muscle contraction?

Correct AnswerverifiedShow Answer

Which of the following correctly describes skeletal muscle?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

According to the sliding-filament model of contraction, how does muscle contraction occur?

Correct AnswerverifiedShow Answer

In an ____________________ contraction, the tension in the muscle increases whereas its length remains the same.

Correct AnswerverifiedShow Answer

Between the end of a motor nerve and a muscle fiber is a narrow space called a ____________________.

Correct AnswerverifiedShow Answer

What is the name of the connective tissue that surrounds the muscle as a whole?

Correct AnswerverifiedShow Answer

How do the muscles of a sprinter running the 400-yard dash in 50 seconds receive most of their energy?

Correct AnswerverifiedShow Answer

Most skeletal muscles remain in a state of

Correct AnswerverifiedShow Answer

What are fascicles?

Correct AnswerverifiedShow Answer

What is the chief function of T tubules?

Correct AnswerverifiedShow Answer

The epimysium of a muscle sometimes extends past as a flat sheet of connective tissue called an ____________________ that then fuses with the covering of another muscle.

Correct AnswerverifiedShow Answer

A lack of use causes a muscle to shrink, or ____________________.

Correct AnswerverifiedShow Answer

The minimum voltage needed to cause a muscle fiber to contract is called the ____________________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Thick myofilaments consist of a protein called ____________________, whereas thin myofilaments consist of a protein called ____________________.

Correct AnswerverifiedShow Answer

Correct Answer
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Thick myofilaments consist of a protein called , whereas thin myofilaments consist of a protein called .

Correct Answer
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