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Chapter 6: The Muscular System

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Level 1 Level 2 Level 3 Level 4

FINAL ROUND

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Level 1:

$100 Question

A large, sheetlike tendon is a(an)

a. tensor.

b. ligament.

c. synergist.

d. aponeurosa.

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ANSWER

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Level 1:

$100 Answer

A large, sheetlike tendon is a(an)

a. tensor.

b. ligament.

c. synergist.

d. aponeurosa.

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Level 1:

$200 Question

The 3 types of muscle tissue are

a. connective, actin, myosin

b. aerobic, anaerobic, striated

c. skeletal, voluntary, involuntary

d. skeletal, smooth, cardiac

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ANSWER

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Level 1:

$200 Answer

The 3 types of muscle tissue are

a. connective, actin, myosin

b. aerobic, anaerobic, striated

c. skeletal, voluntary, involuntary

d. skeletal, smooth, cardiac

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Level 1:

$300 Question

The propagated (growing) action potential makes the sarcolemma permeable to this ion moving into the cell.

a. Na+

b. Cl−

c. Ca2+

d. K+

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ANSWER

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Level 1:

$300 Answer

The propagated action potential makes the sarcolemma permeable to this ion moving into the cell.

a. Na+

b. Cl−

c. Ca2+

d. K+

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Level 1:

$400 Question

When Na+ enters the sarcolemma of a muscle cell during an action potential, it stimulates ____ to be released from the sarcoplasmic reticulum.

a. Ca+

b. K+

c. ATP

d. Na+

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ANSWER

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Level 1:

$400 Answer

When Na+ enters the sarcolemma of a muscle cell during an action potential, it stimulates ____ to be released from the sarcoplasmic reticulum.

a. Ca+

b. K+

c. ATP

d. Na+

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Level 2:

$100 Question

Smooth muscle cells are

a. voluntary

b. striated

c. involuntary

d. multinucleate

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ANSWER

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Level 2:

$100 Answer

Smooth muscle cells are

a. voluntary

b. striated

c. involuntary

d. multinucleate

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Level 2:

$200 Question

Which of the following is NOT a function of the muscular system:

a. production of movement

b. maintenance of posture

c. generation of heat

d. hematopoiesis

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ANSWER

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Level 2:

$200 Answer

Which of the following is NOT a function of the muscular system:

a. production of movement

b. maintenance of posture

c. generation of heat

d. hematopoiesis

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Level 2:

$300 Question

The mechanical force of contraction is generated by:

a. shortening of the thick filaments

b. shortening of the thin filaments

c. a sliding of thin filaments past thick ones

d. the temporary disappearance of thin filaments

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ANSWER

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Level 2:

$300 Answer

The mechanical force of contraction is generated by:

a. shortening of the thick filaments

b. shortening of the thin filaments

c. a sliding of thin filaments past thick ones

d. the temporary disappearance of thin filaments

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Level 2:

$400 Question

Place these structures of the skeletal muscle in order from largest to smallest:

1. fascicle

2. muscle fiber (cell)

3. myosin filament

4. sarcomere

a. 1, 2, 3, 4 c. 4, 3, 2, 1

b. 1, 2, 4, 3 d. 2, 1, 4, 3

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ANSWER

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Level 2:

$400 Answer

Place these structures of the skeletal muscle in order from largest to smallest:

1. fascicle

2. muscle fiber (cell)

3. myosin filament

4. sarcomere

a. 1, 2, 3, 4 c. 4, 3, 2, 1

b. 1, 2, 4, 3 d. 2, 1, 4, 3

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Level 3:

$100 Question

The cell membrane of a muscle cell is known as a(n)

a. Sarcoplasmic reticulum

b. Myosin head

c. Sarcolemma

d. Fasicle

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ANSWER

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Level 3:

$100 Answer

The cell membrane of a muscle cell is known as a(n)

a. Sarcoplasmic reticulum

b. Myosin head

c. Sarolemma

d. Fasicle

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Difference b/t endomysium & sarcolemma?

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Level 3:

$200 Question

When the myosin heads link to the thin filaments they are called

a. articulations.

b. myofibrils.

c. cross bridges.

d. reticuli.

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ANSWER

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Level 3:

$200 Answer

When the myosin heads link to the thin filaments they are called

a. articulations.

b. myofibrils.

c. cross bridges.

d. reticuli.

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Level 3:

$300 Question

Acetylcholine is:

a. an ion pump on the postsynaptic membrane

b. a source of energy for muscle contraction

c. a component of thick myofilaments

d. a neurotransmitter that stimulates skeletal muscle

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ANSWER

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Level 3:

$300 Answer

Acetylcholine is:

a. an ion pump on the postsynaptic membrane

b. a source of energy for muscle contraction

c. a component of thick myofilaments

d. a neurotransmitter that stimulates skeletal muscle

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Level 3:

$400 Question

Calcium is important to muscle contraction because

a. without it muscles wouldn’t divide

b. Myosin heads are made of calcium

c. it enables myosin to bind to actin

d. It provides the energy needed for the muscle to contract

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ANSWER

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Level 3:

$400 Answer

Calcium is important to muscle contraction because

a. without it muscles wouldn’t divide

b. Myosin heads are made of calcium

c. it enables myosin to bind to actin

d. It provides the energy needed for the muscle to contract

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http://www.sci.sdsu.edu/movies/actin_myosin.html

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Level 4:

$100 Question

Most of the energy provided for muscle contraction comes from

a. anaerobic respiration.

b. glycolysis.

c. aerobic respiration.

d. Kreb’s cycle.

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ANSWER

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Level 4:

$100 Answer

Most of the energy provided for muscle contraction comes from

a. anaerobic respiration.

b. glycolysis.

c. aerobic respiration.

d. Kreb’s cycle.

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Level 4:

$200 Question

This high-energy molecule is found in only muscle cells.

a. ADP

b. ATP

c. Creatine phosphate

d. Calmodulin

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ANSWER

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Level 4:

$200 Answer

This high-energy molecule is found in only muscle cells.

a. ADP

b. ATP

c. Creatine phosphate

d. Calmodulin

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Level 4:

$300 Question

Muscles that perform opposite actions to one another are termed __________.

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ANSWER

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Level 4:

$300 Answer

Muscles that perform opposite actions to one another are termed __________.

Antagonists

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Level 4:

$400 Question

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ANSWER

Explain the function of the endomysium, epimysium and perimysium

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Level 4:

$400 Answer

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Explain the function of the endomysium, epimysium and perimysium

They are all connective tissues. Endomysium – wraps individual muscle cells

Epimysium – wraps entire muscle

Perimysium – wraps fasicles

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FINAL ROUND Question

Basically muscles contract because

a. Myosin fibers get shorter

b. actin fibers slide past myosin

c. Muscle cells degrade and rebuild

d. The sacroplasmic reticulum contracts

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ANSWER

© 2012 Pearson Education, Inc.

FINAL ROUND Answer

Basically muscles contract because

a. Myosin fibers get shorter

b. actin fibers slide past myosin

c. Muscle cells degrade and rebuild

d. The sacroplasmic reticulum contracts

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http://faculty.massasoit.mass.edu/whanna/201/201_content/topicdir/muscle/muscle_media/muscle_VD/page143/page143.html