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Muscular System Review

Total questions: 45

Worksheet time: 24mins

Name
Class
Date
1.
Which muscle type is voluntary?
a)
Skeletal
b)
Smooth
c)
Cardiac
2.
Which muscle type is found in the heart?
a)
Skeletal
b)
Smooth
c)
Cardiac
3.
What are the thick myofilaments?
a)
Actin
b)
Myosin
c)
Z lines
d)
Sarcomeres
4.
What are the thin myofilaments?
a)
Actin
b)
Myosin
c)
Z lines
d)
Sarcomeres
5.
Which molecule provides energy?
a)
ATP
b)
ADP
c)
Calcium
d)
Protein
6.
Anaerobic respiration occurs
a)
with oxygen
b)
without oxygen
c)
with carbon dioxide
d)
without carbon dioxide
7.

Which is NOT function of the muscular system?

a)

Movement

b)

Production of body heat

c)

Support and stabilization

d)

Filtration

e)

Guard entrances and exits

8.
Which end of a skeletal muscle attaches to the non-moving bone?
a)
Origin
b)
Insertion
c)
Agonist
d)
Antagonist
9.
Sarcomeres are the repeating contractile units that make up
a)
myofibrils
b)
muscle fibers
c)
fascicles
d)
muscles
10.
Ion that binds to troponin
a)
Calcium
b)
Tropomyosin
c)
Myosin
d)
Sarcoplasmic Reticulum
11.
Covers the binding site on actin
a)
sarcoplasmic reticulum
b)
troponin
c)
tropomyosin
d)
myosin
12.
Acetylcholine is a(n)
a)
neuron
b)
neurotransmitter
c)
neuromuscular disease
d)
enzyme
13.
One motor neuron and all the muscle fibers it innervates
a)
Innervate
b)
Motor unit
c)
Stimuli 
d)
Rigor Mortis
14.
A single muscle fiber is made of _____________.
a)
Endomysium
b)
Sarcomeres
c)
Fascicles
d)
Myofibrils
15.
With prolonged lack of use, muscle will ______, which is progressive wasting away of muscle tissue. Besides pain and muscle stiffness, patients may also experience fatigue, inability to concentrate, sleep disturbances, and a multitude of other symptoms.
a)
Contracture
b)
Atrophy
c)
Seize
d)
Sprain
16.
Attachment to the movable bone
a)
Origin
b)
Insertion
c)
Flexion
d)
Extension
17.
What holds oxygen in muscles cells?
a)
Myofibrils
b)
Myoglobin
c)
Fascicles
18.
Once calcium binds to troponin, tropomyosin moves so that which structure can bind to the exposed site?
a)
acetylcholine
b)
actin
c)
myosin
d)
ATP
19.
Overstretching or injury to muscle or tendon. 
a)
herniation
b)
cramp
c)
spasm
d)
strain
20.
What type of muscle would a sprinter have more of?
a)
Fast Twitch 
b)
Slow Twitch 
21.
Dr. Hernandez diagnosed Miss Sills' pain in her shoulder as inflammation of a tendon.  This condition is called:
a)
bursitis
b)
tenosynovitis
c)
myositis
d)
tendonitis
22.
______ _____ is a byproduct of glucose being broken down when you exercise for prolonged periods of time without adequate rest.
a)
respiratory acidosis
b)
metaboloic acidosis
c)
lactic acid
23.
enzyme that breaks down the muscle cell neurotransmitter and ends the impulse
a)
lactase
b)
sucrase
c)
lipase
d)
acetylcholinterase
24.
What do your muscles do when you are cold?
a)
they get longer
b)
they shiver and generate heat
c)
they weaken
d)
none of the above
25.

The layer of collagen fibers that surrounds an entire muscle is called

a)

epimysium

b)

endomysium

c)

perimysium

d)

ectomysium

26.

What molecule holds tropomyosin in place?

a)

actin

b)

myosin

c)

troponin

d)

calcium

27.

What occurs when there is a lack of ATP and the membrane is more permeable to calcium?

a)

muscular dystrophy

b)

multiple sclerosis

c)

rigor mortis

d)

botulism

28.

What has to occur first for a muscle to relax?

a)

calcium has to bind to troponin

b)

acetylcholinesterase decomposes acetylcholine

c)

myosin heads attach to actin

d)

calcium is released

29.

Which of the following describes red muscles?

a)

red muscles are slower than white muscles

b)

red muscles have fewer mitochondria

c)

red muscles fatigue quickly

d)

red muscles contain less myoglobin

30.

A person with many slow fibers would be great at

a)

running a marathon

b)

sprinting a 100 meter dash

c)

dead lifting 250 pounds

d)

running the 100 meter hurdles

31.

#2 is pointing to the ....

a)

epimysium

b)

perimysium

c)

endomysium

d)

fascicle

32.

#3 is pointing to the ....

a)

epimysium

b)

perimysium

c)

endomysium

d)

fascicle

33.

#7 is pointing to the ....

a)

epimysium

b)

perimysium

c)

endomysium

d)

fascicle

34.

#6 is pointing to the ....

a)

muscle fiber

b)

blood vessel

c)

endomysium

d)

fascicle

35.

#8 is pointing to the ....

a)

muscle fiber

b)

blood vessel

c)

myofibril

d)

fascicle

36.

# 5 is pointing to the ....

a)

muscle fiber

b)

blood vessel

c)

myofibril

d)

fascicle

37.

# 1 is pointing to the ....

a)

muscle fiber

b)

blood vessel

c)

myofibril

d)

tendon

38.

What type of fiber has high glycogen reserves?

a)

fast fiber

b)

slow fiber

c)

intermediate fiber

39.

A resting muscle or a muscle that requires aerobic endurance,

a)

creates most of its ATP by aerobic respiration in the mitochondria

b)

creates most of its energy by utilizing creatine phosphate

c)

creates most of its ATP by anaerobic respiration in the cytoplasm

d)

creates most of its creatine by aerobic respiration in the mitochondria

40.

Botulism is caused by

a)

a toxin that inhibits acetylcholine

b)

a toxin that inhibits acetylcholinesterase

c)

a defective gene

d)

a virus

41.

What is the role of creatine phosphate?

a)

supply energy to make ATP

b)

decompose ATP

c)

synthesize glucose

d)

repay oxygen debt

42.

The additional oxygen required during the recovery period to restore the normal levels is called the

a)

oxygen debt

b)

latent period

c)

threshold

d)

carbon dioxide debt

43.

What part of a muscle contains the sarcolemma, sarcoplasm, myofilaments, and myofibrils?

a)

muscle fiber

b)

myofibril

c)

motor unit

d)

sarcoplasmic reticulum

44.

Where is calcium stored in a skeletal muscle?

a)

sarcoplasmic reticulum

b)

sarcomere

c)

sarcolemma

d)

T-tubule

45.

What part of the skeletal muscle contains actin and myosin and actively shortens during muscle contraction?

a)

myofibril

b)

sarcomere

c)

Z - line

d)

sarcolemma

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