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Unit 6 Muscular System Review

Total questions: 69

Worksheet time: 46mins

Name
Class
Date
1.

What type of muscle contains intercalated disks?

a)

Skeletal

b)

Cardiac

c)

Smooth

2.

What type of muscle has striations? Choose all that apply.

a)

Skeletal

b)

Cardiac

c)

Smooth

3.

What ion is released from the muscle cell when a nerve impulse arrives?

a)

Sodium

b)

Calcium

c)

Potassium

d)

Chloride

4.

All of the following are functions of the muscular system (check all that apply)

a)

Posture

b)

Heat production

c)

Blood production

d)

Movement

5.
How do pairs of skeletal muscles work together?
a)
while one contracts, the other returns to original length
b)
both muscles contract at the same time
c)
both muscles relax at the same time
d)
1 muscle pulls on the bone and the other pulls on the first muscle
6.

Smooth Muscle is found in the?

a)

Heart

b)

Facial

c)

Organs

d)

Legs

7.

Muscles that oppose one another are

a)

synergist

b)

hateful

c)

prime movers

d)

antagonists

8.

What muscle attaches to the bone and produces movement?

a)

skeletal muscle

b)

cardiac muscle

c)

smooth muscle

d)

visceral muscle

9.

__________________ anchors the the muscle to bone

a)

aponeurosis

b)

fascia

c)

tendons

d)

ligament

10.

Point of origin refers to .......

a)

the place where the muscles attach to the bone, but no movement occurs

b)

the place where the muscles attach the and movement occurs

c)

where a muscle attaches to another muscle

d)

the membrane the covers and supports muscles

11.

The bending of a joint

a)

extension

b)

flexion

c)

supination

d)

pronation

12.

Extension

a)

the straightening of a joint

b)

the bending of a joint

c)

supination

d)

pronation

13.

Supination

a)

turns the palm up or forward

b)

turns the palm down or backwards

c)

raising of a body part

d)

lowering of a body part

14.

How are muscles named ?

a)

by location

b)

by fiber direction

c)

by the number of divisions

d)

all these are correct

15.

I am a muscle attached to a bone. I am a voluntary muscle. I appear striped under the microscope. What kind of muscle am I?

a)

skeletal

b)

smooth

c)

cardiac

d)

memory

16.

Your stomach digesting food is an example of what kind of movement?

a)

Voluntary

b)

Involuntary

17.

Swatting a fly off of your shoulder is what kind of movement?

a)

Voluntary

b)

Involuntary

18.

Which of the following puts the structures of the muscle in order from largest to smallest?

a)

Whole muscle, muscle fiber, actin & myosin, myofibril, muscle fasicle

b)

Whole muscle, muscle fasicle, muscle fiber, myofibril, actin & myosin

c)

Whole muscle, muscle fiber, muscle fasicle, myofibril, actin & myosin

d)

Whole muscle, muscle fasicle, muscle fiber, actin & myosin, myofibril

19.

Which part of the sarcomere does not shorten during muscle contraction?

a)

A band

b)

H zone

c)

I band

d)

None of these

20.

Which area of a sarcomere contains only actin?

a)

Z disk

b)

A band

c)

H zone

d)

I band

21.

Which connective tissue surrounds individual muscle fibers?

a)

epimysium

b)

endomysium

c)

perimysium

22.

Which connective tissue surrounds the whole muscle?

a)

epimysium

b)

endomysium

c)

perimysium

23.

Which connective tissue surrounds fasicles?

a)

epimysium

b)

endomysium

c)

perimysium

24.

What is the purpose of a neuromuscular junction?

a)

To destroy the muscle cell in order to end muscle contraction

b)

It is a crossroad for action potential (signals) to cross from neuron to muscle.

c)

To slow down action potentials so that the muscle doesn't receive as many signals.

25.

The neurotransmitter that signals muscle contraction is called...

a)

Acetylcholine

b)

Myosin

c)

Actin

d)

Calcium

26.
Skeletal Muscle contraction is initiated when the ________ sends a message to the muscle cell.  
a)
Muscle cell
b)
Neuron
c)
Gland
d)
None of the above
27.
A single neuron and all the muscle fibers it stimulates make up a(n) _______.
a)
motor unit
b)
motor neuron
c)
axon
d)
neuromuscular junction
28.

The space between the motor neuron and a muscle fiber at a neuromuscular junction

a)

synaptic knob

b)

motor end plate

c)

synaptic cleft

d)

motor neural termination

29.

Muscles in the eye contain motor units with a motor neuron connected to only five muscle fibers. What type of control does a person have over these muscles?

a)

Very little control

b)

No control

c)

Extremely accurate control

d)

Moderate or average control

30.
A sarcomere is
a)
A protein filament or fiber
b)
The basic contractile unit of muscle contraction
c)
An organelle
d)
An organ
31.
The part of the sarcomere that A (green) refers to is the?
a)
Z Line
b)
M Line
c)
H Line
d)
A Line
32.
The part of the sarcomere that B (Orange) refers to is the?
a)
Z Line
b)
M Line
c)
H Line
d)
A Line
33.
The part of the sarcomere that C (Blue) refers to is the?
a)
Actin
b)
Myosin
c)
Troponin
d)
Tropomyosin
34.
The part of the sarcomere that D (Red) refers to is the?
a)
Actin
b)
Myosin
c)
Troponin
d)
Tropomyosin
35.
Thin filaments in a myofibril are
a)
Sarcomeres
b)
Sarcoplasm
c)
Actin
d)
Myosin
36.
Thick filaments are in a myofibril are
a)
ATPase
b)
Sarcoplasmic reticulum
c)
Actin
d)
Myosin
37.

which image shows a muscle fully contracted?

a)

3

b)

1

c)

2

d)

None of the Above

38.

Which stage is the muscle fully relaxed

a)

2

b)

3

c)

None of the above

d)

1

39.

a)

extension

b)

flexion

c)

circumduction

d)

adduction

e)

abduction

40.

a)

extension

b)

flexion

c)

circumduction

d)

adduction

e)

abduction

41.

a)

supination

b)

pronation

c)

circumduction

d)

adduction

e)

rotation

42.

a)

supination

b)

pronation

c)

abduction

d)

adduction

e)

opposition

43.

a)

supination

b)

pronation

c)

abduction

d)

adduction

e)

opposition

44.

a)

inversion

b)

pronation

c)

extension

d)

adduction

e)

circumduction

45.

a)

inversion

b)

plantar flexion

c)

extension

d)

dorsiflexion

e)

circumduction

46.

a)

inversion

b)

plantar flexion

c)

extension

d)

dorsiflexion

e)

circumduction

47.

a)

inversion

b)

plantar flexion

c)

extension

d)

dorsiflexion

e)

eversion

48.

a)

inversion

b)

plantar flexion

c)

extension

d)

dorsiflexion

e)

eversion

49.

a)

inversion

b)

supination

c)

extension

d)

pronation

e)

eversion

50.

a)

inversion

b)

supination

c)

extension

d)

pronation

e)

eversion

51.

a)

inversion

b)

circumduction

c)

opposition

d)

pronation

e)

flexion

52.

The point of muscle attachment to an immovable or less movable bone is known as the ________.

a)

innervation

b)

origin

c)

insertion

d)

action

53.

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

a)

synergists

b)

prime mover

c)

antagonist

d)

fixator

54.

The arrangement of fascicles in orbicularis oris is ________.

a)

circular

b)

convergent

c)

pennate

d)

fusiform

55.

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

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"

56.

Type of movement that decreases the angle of the joint

a)

inversion

b)

flexion

c)

supination

d)

rotation

57.

The movement of a limb toward the body midline

a)

adduction

b)

abduction

c)

flexion

d)

extension

58.

Type of movement that points the toes

a)

eversion

b)

supination

c)

plantar flexion

d)

inversion

59.

Type of movement that turns the sole of the foot medially

a)

eversion

b)

inversion

c)

flexion

d)

hyperextension

60.

Primary action of the adductor muscles

a)

adduction

b)

abduction

c)

flexion

d)

rotation

61.

All muscles cross at least ___ joint(s).

a)

1

b)

2

c)

3

d)

4

62.

Muscles can only __________, they never ___________.

a)

push, pull

b)

pull, push

63.

Another name for the prime mover is

a)

antagonist

b)

agonist

c)

synergist

d)

fixator

64.

A muscle that helps the prime mover is called a

a)

antagonist

b)

agonist

c)

synergist

d)

fixator

65.

A muscle that stabilizes a motion is called a

a)

antagonist

b)

agonist

c)

synergist

d)

fixator

66.

The adductor longus is named based which 2 criteria?

a)

location

b)

shape

c)

relative size

d)

action

e)

number of origins

67.

The biceps brachii is named based which 2 criteria?

a)

location

b)

shape

c)

relative size

d)

action

e)

number of origins

68.

The deltoid is named based which single criteria?

a)

location

b)

shape

c)

relative size

d)

action

e)

number of origins

69.

The sternocleidomastoid is named based which single criteria?

a)

location of origin/insertion

b)

shape

c)

relative size

d)

action

e)

number of origins

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