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Anatomy Chapter 6 Muscular System Review

Total questions: 87

Worksheet time: 1hrs 9mins

Name
Class
Date
1.

#11

a)

trapezius

b)

latissimus dorsi

c)

external obliques

d)

pectoralis major

2.
What muscle is this?
a)
Trapezius
b)
Erector spinae
c)
External obliques
d)
Internal obliques
3.
a)

brachialis

b)

biceps brachi

c)

triceps brachi

d)

brachioradialis

4.
a)

intercostal

b)

rectus abdominus

c)

pectoralis major

d)

masseter

5.

What muscle is represented by #19?

a)

Gastrocnemius

b)

Sartorius

c)

Adductor Longus

d)

Serratus Anterior

6.

What muscle is represented by #7?

a)

Biceps Brachii

b)

Triceps Brachii

c)

Brachioradialis

d)

Latissimus Dorsi

7.

What muscle is highlighted in red?

a)
pectoralis major
b)

deltoid

c)

tarpezius

d)

rectus abdominus

e)

vastus lateralis

8.

What muscle is highlighted in red?

(a)  
Choose from the below words
deltoid
infraspinatus
serratus anterior
erector spinae
9.

What muscle is highlighted in red?

a)
biceps brachii
b)

triceps brachii

c)

deltoid

d)

biceps femoris

10.

What muscle is highlighted in red?

a)

erector spinae

b)

external oblique

c)

rectus abdominus

d)

serratus anterior

11.

What muscle is highlighted in red?

(a)  
Choose from the below words
external oblique
erector spinae
brachioradialis
semimembranosus
12.

What muscle is highlighted in red?

(a)  
Choose from the below words
sartorius
abductors
tensor fasciae
rectus femoris
13.

What muscle is highlighted in red?

(a)  
Choose from the below words
rectus femoris
rectus abdominis
vastus laterus
sartorius
14.

What muscle is highlighted in red?

(a)  
Choose from the below words
tibialis anterior
sartorius
semitendinosus
semimembranosus
15.

What muscle is highlighted in red?

(a)  
Choose from the below words
vastus lateralis
tensor fasciae latae
abductors
rectus femoris
16.

What muscle is highlighted in red?

(a)  
Choose from the below words
vastus medialis
vastus lateralis
sartorius
gastrocnemius
17.

What muscle is highlighted in red?

(a)  

18.

What muscle is highlighted in red?

(a)  

19.

What muscle is highlighted in red?

(a)  

20.
Region where a motor neuron comes in close contact with a muscle cell.
a)
neurotransmitter
b)
muscular dystrophy
c)
muscle tension
d)
neuromuscular junction
21.
The gap between a neuron and a muscle cell: (#4 in the diagram)
a)
synaptic cleft
b)
sarcolemma
c)
vesicle
d)
Ca2+ ion
22.
The neurotransmitter stored in the axon terminal identified as #3
a)
Acetylcholine
b)
Protein Channel
c)
Calcium Ion (Ca2+)
d)
Syanptic Cleft
23.
The organelle containing actin and myosin identified as #9
a)
ACh
b)
Sarcolemma
c)
Vesicle
d)
Myofibril
24.

Contractile unit of a muscle which is also the functional unit of a muscle is ...

a)

sarcomere

b)

motor unit

c)

fascicle

d)

myofibril

25.
The plasma membrane of a skeletal muscle cell is called the:
a)
sarcomere
b)
myofilament
c)
sarcolemma
d)
sarcoplasm
26.
Thick filaments are in a myofibril are
a)
ATPase
b)
Sarcoplasmic reticulum
c)
Actin
d)
Myosin
27.
Thin filaments in a myofibril are
a)
Sarcomeres
b)
Sarcoplasm
c)
Actin
d)
Myosin
28.
What two chemicals are necessary for muscle contraction to occur?
a)
Niacin and Potassium
b)
Calcium and ATP
c)
Sodium and Potassium
d)
Ach and Potassium
29.
What is the structure that stores the Calcium in the muscle cell.  
a)
Sarcoplasm
b)
Sarcolemma
c)
Sarcoplasmic Reticulum
d)
Myoglobin
30.
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
31.
The energy needed to perform a muscle contraction comes directly from
a)
ATP
b)
Oxygen
c)
Glucose
d)
Calcium
32.
What is a crossbridge?
a)
Where myosin binds to actin
b)
Where the calcium crosses into the cytoplasm
c)
Where calcium binds with troponin
d)
None of the answers are correct.
33.
___ and ___ are regulatory proteins bound to actin. 
a)
Troponin and tropomyosin
b)
Myosin and actin
c)
Calcium and Oxygen
d)
Glycogen and hemoglobin
34.
Calcium:
a)
causes ATP binding to actin
b)
increases the action potential along the sarcolemma
c)
binds to proteins on myosin
d)
triggers the binding of myosin to actin
35.
What state is the sarcomere in #1
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
36.
What state is the sarcomere in #2
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
37.

One neuron and all the skeletal muscle cells it stimulates is the ____ ___.

a)

Neurotransmitter

b)

Neuromuscular junction

c)

Motor unit

d)

Synaptic cleft

38.

Once sodium is pumped into the sarcolemma, what happens?

a)

Action potential is transferred to the sarcolemma to cause contraction.

b)

The process ends and ACh breaks down.

c)

Calcium is pumped into the axon terminal.

d)

ACh is released into the synaptic cleft.

39.

Which filament slides inward during muscle contraction

a)

Actin

b)

Myosin

40.

During full muscle contraction, which region disappears?

a)

I band

b)

M line

c)

H zone

d)

A band

41.

Which region consists only actin (thin filament)?

a)

I band

b)

M line

c)

H zone

d)

A band

42.

Which part separate one sarcomere to the next?

a)

M line

b)

I band

c)

H zone

d)

Z line

43.

Do the lengths of the thick and thin filaments change during contraction?

a)

Yes

b)

No

44.

Calcium binds to ___of the troponin-tropomyosin complex.

a)

troponin

b)

tropomyosin

c)

actin

d)

myosin

45.

A ___extends from one Z disc to another Z disc.

a)

Sarcolemma

b)

Neuromuscular junction

c)

Sarcomere

d)

Motor end plate

46.
Muscles are attached to bones by _____.
a)
Ligaments
b)
Tendons
c)
Cartilage
d)
Axons
47.
Another name for a muscle cell.
a)
Fiber
b)
Sacrolemma
c)
Sacromere
d)
Fascicle
48.
A bundle of muscle cells.
a)
sarcomere
b)
fiber
c)
fascicle
d)
Tendon
49.

Which number represents the sarcomere?

a)

1

b)

2

c)

3

d)

4

50.

Which number represents the actin filament?

a)

1

b)

2

c)

3

d)

4

51.

Which number represents the myosin filament?

a)

1

b)

2

c)

3

d)

4

52.

What are the three types of muscle tissue in the body:

a)

Skeletal, cardiac, and smooth muscle

b)

Tendons, Ligaments, Smooth Muscles

c)

Endomysium, perimysium, epimysium

d)

Myofilaments, troponin, tropomysium

53.

What type of muscle cell is shown:

a)

Cardiac Muscle Cell

b)

Skeletal Muscle Cell

c)

Smooth Muscle Cell

d)

This is not a muscle cell, a tendon is visualized

54.

What type of muscle cell is shown:

a)

Cardiac Muscle Cell

b)

Skeletal Muscle Cell

c)

Smooth Muscle Cell

d)

This is not a muscle cell, a tendon is visualized

55.

What type of muscle cell is shown:

a)

Cardiac Muscle Cell

b)

Skeletal Muscle Cell

c)

Smooth Muscle Cell

d)

This is not a muscle cell, a tendon is visualized

56.

The connective tissue coverings of a skeletal muscle, listed from superficial to deep, are:

a)

endomysium, perimysium, and epimysium

b)

endomysium, epimysium, and perimysium

c)

epimysium, endomysium, and perimysium

d)

epimysium, perimysium, and endomysium

57.

The contraction of a muscle exerts a pull on a bone because

a)

muscles are attached to bones by ligaments

b)

muscles are directly attached to bone

c)

muscles that are attached to bones by tendons

d)

All of the above are correct

58.

What do the epimysium and perimysium contain?

a)

Blood Vessels and Nerves

b)

Muscle Fibers and Blood Vessels

c)

Muscle Fibers and Nerves

d)

Only Muscle Fibers

59.

True or False:

Each muscle cell/muscle fiber is composed of a singular myofibril.

a)

True

b)

False

60.

Which is pictured here?

a)

epimysium

b)

perimysium

c)

endomysium

61.

Structure A is on either side of the sarcomere, it is called the

a)

A band

b)

I band

c)

Z disc

d)

fascia

62.

The unit between A and A is called

a)

a sarcomere

b)

The I band

c)

the Z disc

d)

fascia

63.

The impulse that triggers a contraction travels deep into a muscle fiber by means of

a)

Sarcoplasmic reticulum

b)

Transverse Tubules

c)

Mitochondria

d)

Motor end Plates

64.

Identify X? A protein that covers the mysoin binding sites on the actin filament in a relaxed muscle, preventing contraction.

a)

actin

b)

myosin

c)

tropomyosin

d)

troponin

e)

cross bridge

65.

Identify the pink structures? It is a globular protein complex, occuring with tropomyosin in the thin filaments of muscle tissue. Binds to calcium ions, moving tropomyosin away from the myosin binding sites on actin filaments.

a)

actin

b)

myosin

c)

tropomyosin

d)

troponin

e)

cross bridge

66.

When the sarcomeres contract, what happens to the length of the I band?

a)

Increases

b)

Stays the same

c)

Decreases

67.

When the sarcomeres contract, what happens to the length of the A band?

a)

Increases

b)

Stays the same

c)

Decreases

68.

Which of the following muscle types are voluntary?

a)

Skeletal

b)

Cardiac

c)

Smooth muscle

69.

In the image, what are the small purple dots (D in the legend)?

a)

Calcium Ions

b)

Sodium Ions

c)

Neurotransmitter

d)

Acetylcholine

70.

What happens that causes calcium channels to open?

a)

Action Potential on motor neuron

b)

Depolarization of muscle fiber

c)

Influx of sodium ions

d)

Neurotransmitter moves out of the nerve cell.

71.

What is the space between the motor nerve and the muscle called?

a)

Neuromuscular Junction

b)

Synaptic Cleft

c)

Chemical Gap

d)

Motor End Plate

72.

What is structure B in the image?

a)

Neurotransmitter

b)

Acetylcholine

c)

Acetylcholinesterase

d)

Sodium ions (Na+)

73.

In the image, which structure is acetylcholine going to directly affect?

a)

Structure C

b)

Acetylcholine Receptors

c)

Sodium ion channels

d)

Sodium ions (Na+)

74.

What is the purpose of T-tubules in muscle cells?

a)

to carry sodium ions into the muscle cell

b)

To carry electricity into the muscle cell

c)

to carry calcium ions into the muscle cell

75.

What is structure B in the image?

(a)  

76.

The last step in the contraction cycle is to reset the original position of the myosin head to the stretched position. What event causes this to happen?

a)

ATP is split into ADP and Pi

b)

ADP and Pi reattach to the myosin head

c)

Calcium ions attach to the myosin head

d)

sodium ions attach to the myosin head

77.

What happens to cause myosin heads to detach from he actin?

a)

Calcium ions attach to the myosin head

b)

ADP and Pi reattach to the myosin head

c)

ATP attaches to the myosin head

d)

sodium ions attach to the myosin head

78.

An electrical impulse within a single neuron is called a

a)

synapse

b)

membrane potential

c)

action potential

d)

cell body

79.

An enzyme that break down neurotransmitter acethycholine?

a)

lysosome

b)

receptors

c)

cholinesterase

d)

synaptic cleft

80.

A synaptic connection between a neuron and a muscle cell during movement is called

a)

synaptic cleft

b)

junctional folds

c)

myasthenia gravis

d)

neuromascular junction

81.

Part of a neuron cell that carries impulses away from the cell body is called the

a)

vesicle

b)

receptor

c)

dendrite

d)

nerve axon

82.

A model used to describe the process of how actin and myosin filaments slide over each other during muscle contraction.

a)

synaptic cleft

b)

neural junction

c)

neuromascular junction

d)

sliding filament theory

83.

It is like the plasma membrane of muscle cells.

a)

sarcoplasmic reticulum

b)

sarcolemma

c)

sarcomere

d)

receptors

84.

The neurotransmitter that crosses the synaptic gap during neuromascular junction. It send messages/signals to the muscles during movement.

a)

acetylcholine

b)

cholinesterase

c)

motor end plate

d)

neuromascular junction

85.

A connective tissue that surrounds the entire muscle is called

a)

endomysium

b)

perimysium

c)

epimysium

d)

fascicle

86.

A connective tissue that surround each bundle of muscle fibers is called

a)

endomysium

b)

epimysium

c)

perimysium

d)

sarcomere

87.

One bundle of muscle fibers is called

a)

myofibril

b)

fascicle

c)

myofilament

d)

sarcoplasm

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