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Worksheets

Muscular system unit review

Total questions: 150

Worksheet time: 1hrs 18mins

Name
Class
Date
1.
Which muscle type is found in your stomach, bladder, and intestines?
a)
Skeletal
b)
Smooth
c)
Cardiac
d)
Straight
2.
Which muscles are involuntary?
a)
skeletal
b)
cardiac
c)
smooth
d)
smooth and cardiac
3.
When a muscle contracts, it _______
a)
gets longer
b)
gets shorter
c)
gets thinner
d)
grows hair
4.
Which types of muscle tissue are voluntary?
a)
Cardiac
b)
Skeletal
c)
Smooth
d)
Cardiac and Smooth
5.
What is the job of the skeletal muscle's? 
a)
To Help You Breathe
b)
To Move Your Bones
c)
To Produce Carbon Dioxide 
d)
To Keep You Warm
6.

rope-like connective tissue that connects bone to muscle

a)

contract

b)

tendon

c)

tissue

d)

muscle

7.
Identify this type of muscle
a)
smooth
b)
cardiac
c)
skeletal
8.
What type of tissue?
a)
smooth
b)
epithilial
c)
cardiac
d)
skeletal
9.
__________ decreases the angle between two bones. 
a)
Extension
b)
Ligament
c)
Muscle
d)
Flexion
10.
Moving away from the body's midline is called ___________.
a)
Abduction
b)
Adduction
c)
Flexion
d)
Extension
11.
Moving towards the body's midline is called __________.
a)
Abduction
b)
Adduction
c)
Flexion
d)
Extension
12.
The rotation of the forearm so the palm is facing down is called ___________.
a)
Supination
b)
Pronation
c)
Extension
d)
Abduction
13.
The rotation of the forearm so the palm is facing up is called __________.
a)
Flexion
b)
Pronation
c)
Potato
d)
Supination
14.
What is the name of the shoulder muscle?
a)
Sartorious
b)
Trapezius
c)
Deltoid
d)
Sternoclediomastoid
15.
states that the muscle fibers shorten as the actin and myosin filaments pull on each other
a)
threshold stimulus theory
b)
sliding filament theory
c)
neurotransmitter theory
d)
all or none principle
16.
the smallest contractile unit of a myofibril
a)
fascicle
b)
sarcomere
c)
myofilament
d)
myosin
17.
the chemical that accumulates in muscles when oxygen is depleted
a)
myoglobin
b)
hemoglobin
c)
lactic acid
d)
carbon dioxide
18.
Name this tissue
a)
Skeletal
b)
Cardiac
c)
Smooth
19.
List the structures of the muscle organ from smallest to largest
a)
sarcomere, muscle fiber, fascicle, muscle organ
b)
fascicle, muscle organ, myofibril
c)
fascicle, sarcomere, muscle organ
20.
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
21.
The Light I Band consists of... 
a)
Myosin filaments only
b)
Actin filaments only
c)
Myosin and actin filaments
d)
none of the above
22.
What is the name of the Thick filaments?
a)
Actin
b)
Myosin
c)
Myoglobin
d)
Titan
23.
What is the name of the thin filaments in the muscle cell?
a)
Actin
b)
Myosin
c)
Myoglobin
d)
Titan
24.
The plasma membrane of a skeletal muscle cell is called the:
a)
sarcomere
b)
myofilament
c)
sarcolemma
d)
sarcoplasm
25.

The Z line is represented by the number

a)

1

b)

2

c)

3

d)

4

26.
What is being shown here?
a)
Dorsiflexion
b)
Plantarflexion
c)
Inversion
d)
Eversion
27.
What is being shown here?
a)
Plantarflexion
b)
Dorsiflexion
c)
Thumb reposition
d)
Thumb opposition 
28.

given the following events:

1.acetycholine broken down

2.acetylcholine moves across the synaptic cleft

3.action potential reaches the terminal branch (presynaptic terminal)

4.acetylcholine combines with a receptor molecule on a skeletal muscle (postsynaptic membrane)

5.action potential produced in skeletal muscle cell


Choose the arrangement that lists the events in the order the occur at a neuromuscular injunction

a)

2,3,4,1,5

b)

3,2,4,5,1

c)

3,4,2,1,3

d)

4,5,2,1,3

29.

Muscles that oppose the prime mover are

a)

synergist

b)

hateful

c)

prime movers

d)

antagonists

30.
Muscles are composed of which of the following?
a)
Lipids
b)
Protiens
c)
Carbohydrates
d)
Fats
31.
During short bursts of intense exercise, muscles will use which of the following for fuel? 
a)
glucose
b)
fat
c)
creatine phosphate
d)
glycogen
32.
Which of the following MUST be present for aerobic respiration? 
a)
carbon dioxide
b)
lactic acid 
c)
glucose
d)
oxygen
33.
Anaerobic respiration
a)
causes fatigue
b)
produces lactic acid
c)
produces oxygen debt
d)
all of these
34.
The part of a skeletal muscle from z-line to z-line is called
a)
nucleus
b)
H-zone
c)
perimysium
d)
sarcomere
35.
Which structure contains large amounts of calcium used for muscle? 
a)
sarcomere
b)
mitochondria
c)
sarcoplasmic reticulum
d)
myofibril
36.
a)
Flexion
b)
extension
c)
abduction
d)
adduction
37.
a)
Flexion
b)
extension
c)
abduction
d)
adduction
38.
a)
Flexion
b)
extension
c)
abduction
d)
adduction
39.
a)
Flexion
b)
extension
c)
abduction
d)
adduction
40.

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

a)

Movement of bones

b)

Hematopoiesis

c)

Shape of the body

d)

Assistance in digestion

41.

How many muscles help make up the muscular system?

a)

300+

b)

800+

c)

600+

d)

200+

42.

What is labeled by #5?

a)

Muscle Fiber

b)

Fascicle

c)

Myofibril

d)

Myofilament

43.

What is labeled with #1?

a)

Fascicle

b)

Muscle

c)

Tendon

d)

Fascia

44.

What is the name of the structure that has a bundle of myofibrils?

a)

Muscle Fiber

b)

Fascia

c)

Tendon

d)

Fascicle

45.

#3 in the picture is indicating which part of the muscle?

a)

actin

b)

myosin

c)

z line

d)

i band

46.

#4 in the picture is indicating what part of a muscle?

a)

actin

b)

myosin

c)

h band

d)

i band

47.

Label the muscle indicated:

a)

rectus abdominus

b)

external obliques

c)

transverse obliques

d)

serratus anterior

48.

When you are completing a movement and one muscle is shortening or doing the work; what is the name of this muscle?

a)

agonist

b)

antagonist

c)

insertion muscle

d)

origin muscle

49.

Label the muscle indicated:

a)

trapezius

b)

external obliques

c)

latissimus dorsi

d)

errector spinae

50.

Label the muscle indicated:

a)

triceps brachii

b)

biceps brachii

c)

deltoid

d)

pectoralis minor

51.

Label the muscle indicated:

a)

gluteus medius

b)

gluteus maximus

c)

hamstrings

d)

iliopsoa

52.

Label the muscle indicated:

a)

serratus anterior

b)

fibularis longus

c)

tibialis anterior

d)

soleus

53.

Label the muscle indicated:

a)

quadriceps group

b)

adductor group

c)

flexor group

d)

hamstring group

54.

When a muscle contracts and shortens; which of the following is happening microscopically?

a)

The tendons are pulling each other closer

b)

The sarcomeres are getting shorter due to actin and myosin

c)

The sarcomeres are getting shorter due to the push from tendons

d)

The middle of the muscle is pulling from both sides

55.

How do actin and myosin work together during muscle contraction?

a)

actin will pull myosin

b)

myosin will pull actin

c)

actin and myosin work togther to pull tendons

d)

actin and myosin are parts of the muscle but have nothing to do with each other.

56.

What is necessary for the myosin to release the actin?

a)

ATP

b)

Calcium

c)

ADP

d)

Sodium

57.

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)

Where titin and myosin are connected

58.

What is the name of the protein that covers the binding sites on actin?

a)

Myosin

b)

Titin

c)

Troponin

d)

Tropomyosin

59.

What is the name of the place where a nerve meets a muscle fiber

a)

Nerve junction

b)

Neuromuscular junction

c)

Muscle junction

d)

Crossbridge

60.

___ and ___ are regulatory proteins bound to actin.

a)

Myosin and actin

b)

Glycogen and hemoglobin

c)

Calcium and oxygen

d)

Troponin and tropomyosin

61.

The neurotransmitter that signals muscle contraction is...

a)

Calcium

b)

Actin

c)

Myosin

d)

Ach (acetylcholine)

62.

Calcium binds to ___.

a)

troponin

b)

tropomyosin

c)

actin

d)

myosin

63.

___provides energy for muscle contraction and relaxation.

a)

cAMP

b)

ADP

c)

ATP

d)

M line

64.

___slides inward towards the m-line during muscle contraction.

a)

actin

b)

myosin

65.

What is X? It is a small secretory vesicle that contains a neurotransmitter, is found inside an axon and releases it contents into the synaptic cleft after fusing with the membrane.

a)

axon terminal

b)

synaptic cleft

c)

synaptic vesicle

d)

motor unit

e)

motor end plate

66.

What is this structure? It consists of one motor neuron and all the muscle fibers its stimulates.

a)

axon terminal

b)

synaptic cleft

c)

synaptic vesicle

d)

motor unit

e)

motor end plate

67.

What is this structure? It is a modified are of the muscle fiber membrane at which a synapse occurs. A single muscle fiber only has one _______________.

a)

axon terminal

b)

synaptic cleft

c)

synaptic vesicle

d)

motor unit

e)

motor end plate

68.

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

69.

This term refers to when myosin and actin contract to "pull the trigger".

a)

power stroke

b)

contraction phase

c)

relaxation phase

d)

isometric contraction

70.

A calcium deficiency would

a)

create uncoordinated muscle contractions

b)

allow muscle contraction, but not relaxation

c)

prevent contraction by preventing myosin from binding to actin

d)

have no effect on contraction

71.

Z- lines move apart during muscle relaxation because

a)

Calcium ions are added to troponin in actin filaments

b)

Calcium ions are added to tropomyosin in actin filaments

c)

Calcium ions are removed from troponin in actin filaments

d)

Calcium ions are removed from tropomyosin in actin filaments

72.

For skeletal muscles, a conscious thought must be made in order to move them.

a)

True

b)

False

73.
Identify the muscle.
a)
Deltoids
b)
Quadriceps
c)
Triceps
d)
Trapezius
74.

This muscle adducts the shoulders (8) - helps cross arms over the anterior portion of the body.

a)

Lattisimus dorsi

b)

biceps

c)

external oblique

d)

pectoralis major

75.

This is what connects the gastrocnemius to the calcaneous bone (6)

a)

gastrocnemius

b)

calcaneous

c)

achilles tendon

d)

forman's ligament

76.

This muscle crosses the legs over one another (8)

a)

sartorius

b)

hamstrings

c)

Forman's crossorius

d)

extensor carpi radialis

77.

What is the name of this muscle?

a)

Pectoralis major

b)

Pectoralis minor

c)

Coracobrachialis

d)

Serratus anterior

78.

Identify the muscle labeled 1

a)

gluteus maximus

b)

gluteus medius

c)

quadriceps

d)

hamstrings

79.
Identify the muscle
a)
Sartorius
b)
Biceps femoris
c)
semitendinousus
d)
Gracilis
80.
Identify the muscle
a)
Gluteus Maximus
b)
Gracilis
c)
Vastus Lateralis
d)
Rectus Femoris
81.

What muscles make up your hamstring?

a)

biceps femoris, semitendinosus, semimembranosus

b)

rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

c)

supraspinatus, infraspinatus, subscapularis, teres minor

d)

biceps femoris, infraspinatus, teres major, subscapularis

82.

What muscles make up your quadriceps?

a)

biceps femoris, semitendinosus, semimembranosus

b)

rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

c)

supraspinatus, infraspinatus, subscapularis, teres minor

d)

biceps femoris, infraspinatus, teres major, subscapularis

83.

What muscles make up your rotator cuff?

a)

biceps femoris, semitendinosus, semimembranosus

b)

rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

c)

supraspinatus, infraspinatus, subscapularis, teres minor

d)

biceps femoris, infraspinatus, teres major, subscapularis

84.

What does this muscle group do?

a)

extends the knee/leg

b)

flexes the knee/leg

c)

rotates the hip

d)

abducts the thigh

85.

What does this muscle do?

a)

flexes wrist

b)

extends forearm

c)

rotates scapula

d)

flexes forearm

86.

What does this muscle group do?

a)

flexes the knee/leg

b)

extends the knee/leg

c)

rotates the hip

d)

plantarflexes the foot

87.

What does this muscle do?

a)

extends the forearm

b)

flexes the forearm

c)

rotates the arm

d)

abducts the arm

88.

What does this muscle do?

a)

inverts

b)

dorsiflexes

c)

plantarflexes

d)

everts

89.
a)
occipitalis
b)
temporalis
c)
frontalis
d)
orbicularis oris
90.
a)
Orbicularis Oris
b)
Orbicularis Oculi
c)
Corrugator
d)
Frontalis
91.
a)
Orbicularis Oris
b)
Orbicularis Oculi
c)
Corrugator
d)
Occipitals
92.
a)
Temporalis
b)
Frontalis
c)
Occipitals
d)
Corrugator
93.
a)
Buccinator
b)
Zygomaticus Major
c)
Zygomaticus Minor
d)
Masseter
94.
Muscle fibers contain organelles and many ________________.
a)
Muscle Fibers
b)
Fasicles
c)
Myofibrils
d)
Cells
95.
A fascicle is made up of many?
a)
Muscle Fibers
b)
Fasicles
c)
Myofibrils
d)
Cells
96.
Myofibrils are made up of two types of proteins known as?
a)
Actin and Myosin
b)
Troponin and Tropomyosin
c)
Myoglobin and hemoglobin
d)
none of these
97.
What is number 3?
a)
perimysium
b)
epimysium
c)
fascicle
d)
endomysium
98.
What is number 4?
a)
perimysium
b)
muscle fiber
c)
fascicle
d)
endomysium
99.
Which muscle tissue has "Striations"?
a)
Smooth & Skeletal
b)
Skeletal
c)
Cardial & Smooth
d)
Cardiac & Skeletal
100.

a)

supination

b)

pronation

c)

circumduction

d)

adduction

e)

rotation

101.

a)

inversion

b)

pronation

c)

extension

d)

adduction

e)

circumduction

102.

What muscle is this?

a)

Tibialis Anterior

b)

Rectus Femoris

c)

Hamstrings

d)

Brachioradialis

103.

Which step in the NMJ would come 1st (use number to answer) example 2.

1. Ca+2 enters the axon terminal

2. ACH is released from the motor neuron into synaptic cleft.

3. Vesicles with ACH are signaled and bind to the membrane

4. Person decides to move their leg

5. Impulse reaches the motor neuron axon terminal

6.Impulse travels from bran to leg via motor pathway

7. ACH binds to muscle fiber at the motor end plate.

(a)  

104.

Which step in the NMJ would come 2nd (use number to answer) example 4.

1. Ca+2 enters the axon terminal

2. ACH is released from the motor neuron into synaptic cleft.

3. Vesicles with ACH are signaled and bind to the membrane

4. Person decides to move their leg

5. Impulse reaches the motor neuron axon terminal

6.Impulse travels from bran to leg via motor pathway

7. ACH binds to muscle fiber at the motor end plate.

(a)  

105.

Which step in the NMJ would come 3rd (use number to answer) example 4.

1. Ca+2 enters the axon terminal

2. ACH is released from the motor neuron into synaptic cleft.

3. Vesicles with ACH are signaled and bind to the membrane

4. Person decides to move their leg

5. Impulse reaches the motor neuron axon terminal

6.Impulse travels from bran to leg via motor pathway

7. ACH binds to muscle fiber at the motor end plate.

(a)  

106.

Which step in the NMJ would come 4th (use number to answer) example 4.

1. Ca+2 enters the axon terminal

2. ACH is released from the motor neuron into synaptic cleft.

3. Vesicles with ACH are signaled and bind to the membrane

4. Person decides to move their leg

5. Impulse reaches the motor neuron axon terminal

6.Impulse travels from bran to leg via motor pathway

7. ACH binds to muscle fiber at the motor end plate.

(a)  

107.

Which step in the NMJ would come 6th (use number to answer) example 4.

1. Ca+2 enters the axon terminal

2. ACH is released from the motor neuron into synaptic cleft.

3. Vesicles with ACH are signaled and bind to the membrane

4. Person decides to move their leg

5. Impulse reaches the motor neuron axon terminal

6.Impulse travels from bran to leg via motor pathway

7. ACH binds to muscle fiber at the motor end plate.

(a)  

108.

Which step in the NMJ would come 7th or last (use number to answer) example 4.

1. Ca+2 enters the axon terminal

2. ACH is released from the motor neuron into synaptic cleft.

3. Vesicles with ACH are signaled and bind to the membrane

4. Person decides to move their leg

5. Impulse reaches the motor neuron axon terminal

6.Impulse travels from bran to leg via motor pathway

7. ACH binds to muscle fiber at the motor end plate.

(a)  

109.

What step would come 1st in a muscle contraction (use just the number next to the step to answer) ex. 2.

1. myosin attaches to actin forming cross-bridge moving actin in a power-stroke

2. after ACH binds to motor end plate sarcolemma increases permeability to Na+ ions

3. Contraction of muscle leg moves

4. tropomyosin is pulled aside exposing an active site

5. the muscle impulse travels down t-tubules to the SR

6. Na+ ions rush into the sarcolemma

7.Ca+2 ions are released from the SR

8. Calcium ions bind to troponin changing its shape.

(a)  

110.

What step would come 2nd in a muscle contraction (use just the number next to the step to answer) ex. 2.

1. myosin attaches to actin forming cross-bridge moving actin in a power-stroke

2. after ACH binds to motor end plate sarcolemma increases permeability to Na+ ions

3. Contraction of muscle leg moves

4. tropomyosin is pulled aside exposing an active site

5. the muscle impulse travels down t-tubules to the SR

6. Na+ ions rush into the sarcolemma

7.Ca+2 ions are released from the SR

8. Calcium ions bind to troponin changing its shape.

(a)  

111.

What step would come 3rd in a muscle contraction (use just the number next to the step to answer) ex. 2.

1. myosin attaches to actin forming cross-bridge moving actin in a power-stroke

2. after ACH binds to motor end plate sarcolemma increases permeability to Na+ ions

3. Contraction of muscle leg moves

4. tropomyosin is pulled aside exposing an active site

5. the muscle impulse travels down t-tubules to the SR

6. Na+ ions rush into the sarcolemma

7.Ca+2 ions are released from the SR

8. Calcium ions bind to troponin changing its shape.

(a)  

112.

What step would come 4th in a muscle contraction (use just the number next to the step to answer) ex. 2.

1. myosin attaches to actin forming cross-bridge moving actin in a power-stroke

2. after ACH binds to motor end plate sarcolemma increases permeability to Na+ ions

3. Contraction of muscle leg moves

4. tropomyosin is pulled aside exposing an active site

5. the muscle impulse travels down t-tubules to the SR

6. Na+ ions rush into the sarcolemma

7.Ca+2 ions are released from the SR

8. Calcium ions bind to troponin changing its shape.

(a)  

113.

What step would come 5th in a muscle contraction (use just the number next to the step to answer) ex. 2.

1. myosin attaches to actin forming cross-bridge moving actin in a power-stroke

2. after ACH binds to motor end plate sarcolemma increases permeability to Na+ ions

3. Contraction of muscle leg moves

4. tropomyosin is pulled aside exposing an active site

5. the muscle impulse travels down t-tubules to the SR

6. Na+ ions rush into the sarcolemma

7.Ca+2 ions are released from the SR

8. Calcium ions bind to troponin changing its shape.

(a)  

114.

What step would come 6th in a muscle contraction (use just the number next to the step to answer) ex. 2.

1. myosin attaches to actin forming cross-bridge moving actin in a power-stroke

2. after ACH binds to motor end plate sarcolemma increases permeability to Na+ ions

3. Contraction of muscle leg moves

4. tropomyosin is pulled aside exposing an active site

5. the muscle impulse travels down t-tubules to the SR

6. Na+ ions rush into the sarcolemma

7.Ca+2 ions are released from the SR

8. Calcium ions bind to troponin changing its shape.

(a)  

115.

What step would come 7th in a muscle contraction (use just the number next to the step to answer) ex. 2.

1. myosin attaches to actin forming cross-bridge moving actin in a power-stroke

2. after ACH binds to motor end plate sarcolemma increases permeability to Na+ ions

3. Contraction of muscle leg moves

4. tropomyosin is pulled aside exposing an active site

5. the muscle impulse travels down t-tubules to the SR

6. Na+ ions rush into the sarcolemma

7.Ca+2 ions are released from the SR

8. Calcium ions bind to troponin changing its shape.

(a)  

116.

What step would come 8th in a muscle contraction (use just the number next to the step to answer) ex. 2.

1. myosin attaches to actin forming cross-bridge moving actin in a power-stroke

2. after ACH binds to motor end plate sarcolemma increases permeability to Na+ ions

3. Contraction of muscle leg moves

4. tropomyosin is pulled aside exposing an active site

5. the muscle impulse travels down t-tubules to the SR

6. Na+ ions rush into the sarcolemma

7.Ca+2 ions are released from the SR

8. Calcium ions bind to troponin changing its shape.

(a)  

117.

What is labeled with #7?

a)

Fascicle

b)

Muscle

c)

Muscle fiber

d)

myofibril

118.

What is number 5?

a)

perimysium

b)

epimysium

c)

fascicle

d)

endomysium

119.

What muscle is this?

a)

Triceps

b)

Biceps

c)

Tibialis Anterior

d)

Brachioradialis

120.

Identify the muscle labeled 1

a)

gluteus maximus

b)

gluteus medius

c)

quadriceps

d)

hamstrings

121.
What muscle is this?
a)
Gastrocnemius
b)
Quadriceps Femoris
c)
Pectoralis Major
d)
Soleus
122.
Which term means straightening or increasing angle at a joint?
a)
Circumduction
b)
Rotation
c)
Flexion
d)
Extension
123.

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

124.

Rigor mortis that occurs in skeletal muscles a few hours after death is due to

a)

excessive ATP, which prevents muscle relaxation

b)

lack of ATP, which prevents muscle relaxation

c)

excessive ATP, which causes muscle contraction

d)

None of these

125.

Muscle fatigue is most likely due to an accumulation of

a)

citric acid

b)

lactic acid

c)

creatine

d)

myosin

126.
enzyme that breaks down the muscle cell neurotransmitter and ends the impulse
a)
lactase
b)
sucrase
c)
lipase
d)
acetylcholinterase
127.
Letter F is the ___________.
a)
Satorius
b)
Gracilis
Vasus lateralis
c)
Rectus Femoris
d)
Gracilis
128.

How is Ca2+ move back into sarcoplasmic reticulum?

a)

Simple diffusion

b)

Facilitated diffusion

c)

Endocytosis

d)

Active transport

129.
the __ zone of a sarcomere contains no actin filaments while the skeletal muscle is at rest
a)
H
b)
Z
c)
synaptic cleft
d)
sarcomere
130.
specialized smooth endoplasmic reticulum that surrounds each myofibril, it stores calcium and releases on demand
a)
sarcolemma
b)
sarcoplasmic reticulum
c)
thick filament
d)
thin filament
131.

The type of muscle contraction where the muscle tenses but does not shorten. (no movement)

a)

Isometric

b)

Isotonic

c)

Contraction

d)

relaxation

132.

The _____ of a skeletal muscle in the less moveable end

a)

origin

b)

insertion

c)

antagonist

d)

synergist

133.

The _____ of a skeletal muscle the more moveable end

a)

origin

b)

insertion

c)

antagonist

d)

synergist

134.

When muscles contract, it pulls_____

a)

the insertion toward the origin

b)

the origin toward the insertion

c)

the less moveable end toward the more moveable end

135.

The biceps brachii is named that because _____.

a)

It has 2 origins.

b)

It has 2 insertions

c)

It has 4 origins

d)

It has 4 insertions

136.

The muscle that causes the action and does the majority of the work.

a)

stabilizer

b)

prime mover

c)

antagonist

d)

synergist

137.

The muscles that assist the prime mover

a)

agonist

b)

prime mover

c)

antagonist

d)

synergist

138.

A muscle can be a synergist for one action and an antagonist for another action.

a)

true

b)

false

139.

Put these steps in the correct order for relaxation of a muscle.

1. Calcium is pumped back into the SR

2. ACH is broken down by Acetylcholinesterase

3. Troponin changes shape

4. impulse ceases

5. Muscle relaxes

6. Tropomyosin blocks active site on actin

a)

423165

b)

312645

c)

241365

d)

123456

140.

What is section 7 called?

a)

A Band

b)

Z Disc

c)

H Zone

d)

I band

141.

Which number shows the M Line

a)

8

b)

3

c)

2

d)

6

142.

What is #5 pointing to?

a)

I Band

b)

Z Disc

c)

Myosin

d)

A Band

143.

Which muscle originates on the anterior inferior iliac spine and inserts on the tibial tuberosity via the patellar tendon

a)

triceps brachii

b)

biceps brachii

c)

rectus femoris

d)

gastrocnemius

144.

Which step in the NMJ would come 5th (use number to answer) example 4.

1. Ca+2 enters the axon terminal

2. ACH is released from the motor neuron into synaptic cleft.

3. Vesicles with ACH are signaled and bind to the membrane

4. Person decides to move their leg

5. Impulse reaches the motor neuron axon terminal

6.Impulse travels from bran to leg via motor pathway

7. ACH binds to muscle fiber at the motor end plate.

(a)  

145.
The type of muscle contraction where the muscle tenses but does not shorten.  
a)
Isometric
b)
Isotonic
c)
Contraction
d)
relaxation
146.

What type of contraction is this?

a)

Tetanic

b)

Isometric

c)

Isotonic

d)

Isokinetic

e)

Eccentric

147.

What type of contraction is this?

a)

Tetanic

b)

Isometric

c)

Isotonic

d)

Isokinetic

e)

Eccentric

148.
This is a muscle biopsy. What is the predominant muscle fibre type here?
a)
Slow Twitch
b)
Fast Twitch
149.

If exercise lasts for 12 seconds, what is the main energy system used?

a)

Lactic Acid

b)

Creatine Phosphate

c)

Aerobic

150.

Higher ratio of which fiber type?

a)

Type I

b)

Type II

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