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Worksheets

Muscular System Test

Total questions: 134

Worksheet time: 1hrs 17mins

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.

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

28.

Muscles that oppose the prime mover are

a)

synergist

b)

hateful

c)

prime movers

d)

antagonists

29.
Muscles are composed of which of the following?
a)
Lipids
b)
Protiens
c)
Carbohydrates
d)
Fats
30.

During short bursts of intense exercise, muscles will use which of the following for fuel first? 

a)

glucose

b)

fat

c)

creatine phosphate

d)

glycogen

31.
Which of the following MUST be present for aerobic respiration? 
a)
carbon dioxide
b)
lactic acid 
c)
glucose
d)
oxygen
32.
Anaerobic respiration
a)
causes fatigue
b)
produces lactic acid
c)
produces oxygen debt
d)
all of these
33.
The part of a skeletal muscle from z-line to z-line is called
a)
nucleus
b)
H-zone
c)
perimysium
d)
sarcomere
34.
Which structure contains large amounts of calcium used for muscle? 
a)
sarcomere
b)
mitochondria
c)
sarcoplasmic reticulum
d)
myofibril
35.
a)
Flexion
b)
extension
c)
abduction
d)
adduction
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.

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

40.

How many muscles help make up the muscular system?

a)

300+

b)

800+

c)

600+

d)

200+

41.

What is labeled by #5?

a)

Muscle Fiber

b)

Fascicle

c)

Myofibril

d)

Myofilament

42.

What is labeled with #1?

a)

Fascicle

b)

Muscle

c)

Tendon

d)

Ligament

43.

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

a)

Muscle Fiber

b)

Fascia

c)

Tendon

d)

Fascicle

44.

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

a)

actin

b)

myosin

c)

z line

d)

i band

45.

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

a)

actin

b)

myosin

c)

h band

d)

i band

46.

Label the muscle indicated:

a)

rectus abdominus

b)

external obliques

c)

transverse obliques

d)

serratus anterior

47.

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

48.

Label the muscle indicated:

a)

trapezius

b)

external obliques

c)

latissimus dorsi

d)

errector spinae

49.

Label the muscle indicated:

a)

serratus anterior

b)

fibularis longus

c)

tibialis anterior

d)

soleus

50.

Label the muscle indicated:

a)

quadriceps group

b)

adductor group

c)

flexor group

d)

hamstring group

51.

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

52.

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.

53.

What is necessary for the myosin to release the actin?

a)

ATP

b)

Calcium

c)

ADP

d)

Sodium

54.

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

55.

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

a)

Myosin

b)

Titin

c)

Troponin

d)

Tropomyosin

56.

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

57.

___ and ___ are regulatory proteins bound to actin.

a)

Myosin and actin

b)

Glycogen and hemoglobin

c)

Calcium and oxygen

d)

Troponin and tropomyosin

58.

The neurotransmitter that signals muscle contraction is...

a)

Calcium

b)

Actin

c)

Myosin

d)

Ach (acetylcholine)

59.

Calcium binds to ___.

a)

troponin

b)

tropomyosin

c)

actin

d)

myosin

60.

___provides energy for muscle contraction and relaxation.

a)

cAMP

b)

ADP

c)

ATP

d)

M line

61.

___slides inward towards the m-line during muscle contraction.

a)

actin

b)

myosin

62.

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

63.

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

64.

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

65.

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

66.

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

67.

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

68.

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

69.

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

a)

True

b)

False

70.

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

a)

gastrocnemius

b)

calcaneous

c)

achilles tendon

d)

forman's ligament

71.
Identify the muscle
a)
Gluteus Maximus
b)
Gracilis
c)
Vastus Lateralis
d)
Rectus Femoris
72.

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

73.

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

74.

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

75.

What does this muscle group do?

a)

extends the knee/leg

b)

flexes the knee/leg

c)

rotates the hip

d)

abducts the thigh

76.

What does this muscle do?

a)

flexes wrist

b)

extends forearm

c)

rotates scapula

d)

flexes elbow

77.

What does this muscle group do?

a)

flexes the knee/leg

b)

extends the knee/leg

c)

rotates the hip

d)

plantarflexes the foot

78.

What does this muscle do?

a)

extends the elbow

b)

flexes the elbow

c)

rotates the arm

d)

abducts the arm

79.
a)
occipitalis
b)
temporalis
c)
frontalis
d)
orbicularis oris
80.
a)
Temporalis
b)
Frontalis
c)
Occipitals
d)
Corrugator
81.
Muscle fibers contain organelles and many ________________.
a)
Muscle Fibers
b)
Fasicles
c)
Myofibrils
d)
Cells
82.
A fascicle is made up of many?
a)
Muscle Fibers
b)
Fasicles
c)
Myofibrils
d)
Cells
83.
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
84.
What is number 3?
a)
perimysium
b)
epimysium
c)
fascicle
d)
endomysium
85.
What is number 4?
a)
perimysium
b)
muscle fiber
c)
fascicle
d)
endomysium
86.
Which muscle tissue has "Striations"?
a)
Smooth & Skeletal
b)
Skeletal
c)
Cardial & Smooth
d)
Cardiac & Skeletal
87.

a)

supination

b)

pronation

c)

circumduction

d)

adduction

e)

rotation

88.

a)

inversion

b)

pronation

c)

extension

d)

adduction

e)

circumduction

89.

a)

inversion

b)

plantar flexion

c)

extension

d)

dorsiflexion

e)

eversion

90.

What muscle is this?

a)

Tibialis Anterior

b)

Rectus Femoris

c)

Hamstrings

d)

Brachioradialis

91.

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)  

92.

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)  

93.

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)  

94.

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)  

95.

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)  

96.

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)  

97.

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)  

98.

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)  

99.

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)  

100.

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)  

101.

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)  

102.

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)  

103.

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)  

104.

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)  

105.

What is labeled with #7?

a)

Fascicle

b)

Muscle

c)

Muscle fiber

d)

myofibril

106.

What is number 5?

a)

perimysium

b)

epimysium

c)

fascicle

d)

endomysium

107.

What muscle is this?

a)

Triceps

b)

Biceps

c)

Tibialis Anterior

d)

Brachioradialis

108.

Identify the muscle labeled 1

a)

gluteus maximus

b)

gluteus medius

c)

quadriceps

d)

hamstrings

109.
What muscle is this?
a)
Gastrocnemius
b)
Quadriceps Femoris
c)
Pectoralis Major
d)
Soleus
110.
Which term means straightening or increasing angle at a joint?
a)
Circumduction
b)
Rotation
c)
Flexion
d)
Extension
111.

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

112.

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

113.

Muscle fatigue is most likely due to an accumulation of

a)

citric acid

b)

lactic acid

c)

creatine

d)

myosin

114.
enzyme that breaks down the muscle cell neurotransmitter and ends the impulse
a)
lactase
b)
sucrase
c)
lipase
d)
acetylcholinterase
115.
Letter F is the ___________.
a)
Satorius
b)
Gracilis
Vasus lateralis
c)
Rectus Femoris
d)
Gracilis
116.

How is Ca2+ move back into sarcoplasmic reticulum?

a)

Simple diffusion

b)

Facilitated diffusion

c)

Endocytosis

d)

Active transport

117.
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
118.
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
119.

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

a)

Isometric

b)

Isotonic

c)

Contraction

d)

relaxation

120.

Which elbow muscle provides extension of the elbow and originates on the humerus and inserts on the olecranon process of the ulna?

a)

biceps brachii

b)

triceps brachii

c)

brachialis

d)

brachioradialis

121.

Which muscle originates on the coracoid process and inserts on the radial tuberosity?

a)

biceps brachii

b)

triceps brachii

c)

brachialis

d)

brachioradialis

122.

The _____ of a skeletal muscle in the less moveable end

a)

origin

b)

insertion

c)

antagonist

d)

synergist

123.

The _____ of a skeletal muscle the more moveable end

a)

origin

b)

insertion

c)

antagonist

d)

synergist

124.

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

125.

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

126.

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

a)

stabilizer

b)

prime mover

c)

antagonist

d)

synergist

127.

The muscles that assist the prime mover

a)

agonist

b)

prime mover

c)

antagonist

d)

synergist

128.

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

a)

true

b)

false

129.

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

130.

What is section 7 called?

a)

A Band

b)

Z Disc

c)

H Zone

d)

I band

131.

Which number shows the M Line

a)

8

b)

3

c)

2

d)

6

132.

What is #5 pointing to?

a)

I Band

b)

Z Disc

c)

Myosin

d)

A Band

133.

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

134.

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)  

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