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Neuromuscular junction and muscles

Total questions: 101

Worksheet time: 51mins

Name
Class
Date
1.

The point at which the nerve cell reaches the sarcolemma of the muscle fiber is the _____.

a)

Neurotransmitter

b)

Acetylcholine

c)

Synaptic cleft

d)

Neuromuscular Junction

2.

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

a)

Neurotransmitter

b)

Neuromuscular junction

c)

Motor unit

d)

Synaptic cleft

3.

The gap between the nerve cell and sarcolemma is the ____ ___.

a)

Synaptic cleft

b)

Neurotransmitter

c)

Motor unit

d)

Neuromuscular junction

4.

What is the specific neurotransmitter that stimulates the movement of skeletal muscles?

a)

GABA

b)

Acetylcholine

c)

Serotonin

d)

Dopamine

5.

Once the action potential reaches the end of the axon terminal what takes place?

a)

ACh is released into the synaptic cleft.

b)

Calcium is pumped into the sarcolemma.

c)

Calcium is pumped into the AT.

d)

The muscle contracts.

6.

Once calcium is pumped into the axon terminal what happens?

a)

The muscle contracts

b)

ACh is released into the synaptic cleft.

c)

Sodium pumps into the sarcolemma.

d)

The muscle contracts.

7.

What is the name of the component that houses the neurotransmitters?

a)

Synaptic cleft

b)

Acetylcholine

c)

Receptors

d)

Synaptic vesicles

8.

Once ACh binds to receptor cells on the sarcolemma, what takes place?

a)

Sarcolemma becomes temporarily permeable to sodium.

b)

The muscle contracts.

c)

Calcium is pumped into the axon terminal.

d)

Synaptic vesicles move to the end of the terminal.

9.

The neuromuscular junction is created when the nerve cell reaches the ___.

a)

Sarcomere

b)

Sarcoplasmic reticulum

c)

Sarcolemma

d)

Myofibril

10.

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.

11.
The gap between a neuron and a muscle cell: (#4 in the diagram)
a)
synaptic cleft
b)
sarcolemma
c)
vesicle
d)
Ca2+ ion
12.
A bundle of fascicles best describes a
a)
muscle fiber
b)
muscle tissue
c)
myofibril
d)
tendon
13.
What layer of connective tissue covers the muscle fiber?
a)
epimysium
b)
endomysium
c)
perimysium
14.
The neurotransmitter stored in the axon terminal identified as #3
a)
Acetylcholine
b)
Protein Channel
c)
Calcium Ion (Ca2+)
d)
Syanptic Cleft
15.
The organelle that stores ACh in the axon is identified as #4
a)
Motor Neuron
b)
Axon Terminal of Motor Neuron
c)
Sarcolemma
d)
 Vesicle
16.

The specialized part of the cell membrane of the muscle fiber identified as #5

a)

Sodium ion (Na+)

b)

Axon Terminal of Motor Neuron

c)

motor end plate

d)

Vesicle

17.
The organelle containing actin and myosin identified as #9
a)
ACh
b)
Sarcolemma
c)
Vesicle
d)
Myofibril
18.
This is a neurotransmitter used to create a muscle impulse
a)
Acetylcholine
b)
Calcium Ions (Ca2+)
c)
Sodium Ions (Na+)
d)
Protein Channels
19.
Muscles are attached to bones by _____.
a)
Ligaments
b)
Tendons
c)
Cartilage
d)
Axons
20.
The organelle that contains actin and myosin.
a)
Tendon
b)
myofilament
c)
myofibril
d)
Fiber
21.
Another name for a muscle cell.
a)
Fiber
b)
Sacrolemma
c)
Sacromere
d)
Fascicle
22.
Contractile unit of a muscle.
a)
sarcomere
b)
motor unit
c)
fascicle
d)
myofibril
23.
A bundle of muscle cells.
a)
sarcomere
b)
fiber
c)
fascicle
d)
Tendon
24.
Ribbon like organelle found in muscle cells that have a banded appearance
a)
sarcomere
b)
myofibril
c)
fascicle
d)
actin
25.
Thin filaments in a myofibril are
a)
Sarcomeres
b)
Sarcoplasm
c)
Actin
d)
Myosin
26.
The plasma membrane of a skeletal muscle cell is called the:
a)
sarcomere
b)
myofilament
c)
sarcolemma
d)
sarcoplasm
27.
The functional unit of the muscle cell is the: 
a)
Sarcomere
b)
Osteon
c)
Myofilament
d)
Muscle fiber
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.
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
30.
A muscle contraction that does not appear to relax and is sustained by continuous stimulation.
a)
Unfused Tetanus
b)
Fused Tetanus
c)
Twitch
31.
The energy needed to perform a muscle contraction comes directly from
a)
ATP
b)
Oxygen
c)
Glucose
d)
Calcium
32.

One neuron and all the skeletal muscles it stimulates is known as a ________.

a)

sarcoplasmic reticulum

b)

motor unit

c)

synaptic cleft

d)

neuromuscular junction

33.

What is the unstoppable electrical current that travels down the length of the entire surface of a sarcolemma?

a)

neurotransmitter

b)

graded response

c)

acetylcholine

d)

action potential

34.

What is released by axon terminals into the synaptic cleft to stimulate a muscle to contract?

a)

potassium ions

b)

sodium ions

c)

acetylcholine

d)

actin

35.

Why are calcium ions necessary for skeletal muscle contraction?

a)

Calcium ions increase the speed of the action potential transmitted along the sarcolemma.

b)

Calcium ions release the inhibition on Z discs.

c)

Calcium ions trigger the binding of myosin heads to actin filaments.

d)

Calcium ions cause ATP binding to actin.

36.

What is acetylcholine?

a)

an ion pump on the postsynaptic membrane

b)

a source of energy for muscle contraction

c)

a component of thick myofilaments

d)

a neurotransmitter that stimulates skeletal muscle to contract

37.

The gap between the axon terminal of a motor neuron and the sarcolemma of a skeletal muscle cell is called the ________.

a)

motor unit

b)

synaptic cleft

c)

cross bridge

d)

sarcomere

38.

What must rush into a muscle cell to promote its depolarization?

a)

potassium ions

b)

calcium ions

c)

acetylcholine

d)

sodium ions

39.

Neurotransmitters are released upon stimulation from a nerve impulse from the ________.

a)

axon terminals of the motor neuron

b)

myofibrils

c)

sarcolemma of the muscle cell

d)

sarcoplasmic reticulum

40.

Which of these events must occur first to trigger the skeletal muscle to generate an action potential and contract?

a)

Potassium ions diffuse out of the muscle cell.

b)

Acetylcholine (ACh) binds to receptors on the sarcolemma and allows passage of sodium ions into the cell.

c)

The sodium-potassium pump restores sodium and potassium back to their initial positions.

d)

Acetylcholinesterase (AchE) breaks down acetylcholine (ACh).

41.
•A nerve carrying impulses from the brain and stimulates muscles to contract.
a)
motor neuron
b)
sensory neuron
42.
Folds in sarcolemma along the synaptic gutter
a)
synaptic cleft
b)
subneural clefts
43.
Long, threadlike process that transmits impulse away from cell body 
a)
tropomyosin
b)
axon
c)
dendrites
44.
Muscle fibers are stimulated by what?
a)
sensory neurons
b)
motor neurons
45.
What is number 4 pointing to?
a)
synaptic cleft
b)
sarcolemma
c)
subneural clefts
d)
Ca++
46.
What is number 2 pointing to?
a)
mitochondria
b)
neurotransmitter
c)
synaptic vesicles
d)
sarcolasmic reticulum
47.
What is A?
a)
transverse tubules
b)
sarcolemma
c)
myofilaments
d)
sarcomere
48.
A bunch of fascicles combined makes what?
a)
muscle fiber
b)
muscle tissue
c)
myofibril
49.
What layer of connective tissue covers the muscle fiber?
a)
epimysium
b)
endomysium
c)
perimysium
50.
Where is the fascia of a muscle tissue located?
a)
over the perimysium
b)
over the epimysium
c)
over the endomysium
51.

The point at which the motor neuron reaches the sarcolemma of the muscle fiber is the _____.

a)

Neurotransmitter

b)

Acetylcholine

c)

Synaptic cleft

d)

Neuromuscular Junction

52.

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

a)

Neurotransmitter

b)

Neuromuscular junction

c)

Motor unit

d)

Synaptic cleft

53.

The gap between the nerve cell and sarcolemma is the ____ ___.

a)

Synaptic cleft

b)

Neurotransmitter

c)

Motor unit

d)

Neuromuscular junction

54.

What is the specific neurotransmitter that stimulates the movement of skeletal muscles?

a)

GABA

b)

Acetylcholine

c)

Serotonin

d)

Dopamine

55.

Once the action potential reaches the end of the axon terminal what happens next?

a)

ACh is released into the synaptic cleft.

b)

Calcium is pumped into the sarcolemma.

c)

Calcium is pumped into the motor neurons axon terminal.

d)

The muscle contracts.

56.

Once calcium is pumped into the axon terminal what happens?

a)

The muscle contracts

b)

ACh is released into the synaptic cleft.

c)

Sodium pumps into the sarcolemma.

d)

The muscle contracts.

57.

What is the name of the component that holds the neurotransmitters?

a)

Synaptic cleft

b)

Acetylcholine

c)

Receptors

d)

Synaptic vesicles

58.

Once sodium is pumped into the sarcolemma, what happens?

a)

A muscle action potential is formed which will cause the muscle to contract.

b)

The process ends and ACh breaks down.

c)

Calcium is pumped into the axon terminal.

d)

ACh is released into the synaptic cleft.

59.

The specialized part of the cell membrane of the muscle fiber identified as #5

a)

Sodium ion (Na+)

b)

Axon Terminal of Motor Neuron

c)

motor end plate

d)

Vesicle

60.
Contractile unit of a muscle.
a)
sarcomere
b)
motor unit
c)
fascicle
d)
myofibril
61.
Thick filaments are in a myofibril are
a)
ATPase
b)
Sarcoplasmic reticulum
c)
Actin
d)
Myosin
62.
Thin filaments in a myofibril are
a)
Sarcomeres
b)
Sarcoplasm
c)
Actin
d)
Myosin
63.
The plasma membrane of a skeletal muscle cell is called the:
a)
sarcomere
b)
myofilament
c)
sarcolemma
d)
sarcoplasm
64.

The point at which the nerve cell reaches the sarcolemma of the muscle fiber is the _____.

a)

Neurotransmitter

b)

Acetylcholine

c)

Synaptic cleft

d)

Neuromuscular Junction

65.

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

a)

Neurotransmitter

b)

Neuromuscular junction

c)

Motor unit

d)

Synaptic cleft

66.

The gap between the nerve cell and sarcolemma is the ____ ___.

a)

Synaptic cleft

b)

Neurotransmitter

c)

Motor unit

d)

Neuromuscular junction

67.

What is the specific neurotransmitter that stimulates the movement of skeletal muscles?

a)

GABA

b)

Acetylcholine

c)

Serotonin

d)

Dopamine

68.

Once the action potential reaches the end of the axon terminal what takes place?

a)

ACh is released into the synaptic cleft.

b)

Calcium is pumped into the sarcolemma.

c)

Calcium is pumped into the AT.

d)

The muscle contracts.

69.

What is a prime mover?

a)

A: The muscles that are responsible for generating a movement

b)

B: The muscles that move the most in an action

c)

C: The muscles that cause you to flex

d)

D: The muscles that cause you to extend

70.

_______ movement is at your free will.

a)

A: Voluntary

b)

B: Involuntary

71.

What is synergist?

a)

A: A muscle that assists in prime movement muscles

b)

B: Muscles that are the prime movement muscles

c)

C: A muscle that relaxes during a movement

d)

D: Muscles that are voluntary

72.

What is an antagonist?

a)

A: A muscle that is responsible for carrying out an action

b)

B: A muscle that is involuntary

c)

C: A muscle that relaxes during a movement

d)

D: A muscle that assists in prime movement muscles

73.

Where does Ach (acetylcholine) release?

a)

A: In the neuromuscular junction

b)

B: In the bones

c)

C: In the synaptic cleft

d)

D: In the baroreceptors

74.

A _________ connects two bones/cartilages together or holds together a joint.

a)

A: Ligament

b)

B: Tendon

c)

C: Synergist

d)

D: Antagonist

75.

What is a neuromuscular junction?

a)

A: synapse

b)

B: chemoreceptor

c)

C: neurotransmitter

d)

D: vesicles

76.

Where is the cardiac muscle located?

a)

A: The bones

b)

B: The organs

c)

C: The heart

d)

D: In the muscles

77.

Where is the neuromuscular junction located?

a)

A: Between the skeletal muscle and schwann cells

b)

B: Between the motor neuron and skeletal muscle

78.

Is skeletal muscle voluntary or involuntary?

a)

A: Voluntary

b)

B: Involuntary

79.

Is cardiac muscle voluntary or involuntary?

a)

A: Involuntary

b)

B: Voluntary

80.

What does Ach (acetylcholine) do in the body?

a)

A: Sends signals to other cells.

b)

B: Binds cells together

c)

C: Provides energy

d)

D: Is a catalyst to chemical reactions

81.

What main muscle contracts the lungs?

a)

A: Sarcoplasmic Reticulum

b)

B: Medulla Oblongata

c)

C: Muscle Fibers

d)

D: Diaphragm

82.

Where is the skeletal muscle in the body?

a)

A: In the muscles

b)

B: In the heart

c)

C: In the bones

d)

D: In the organs

83.

Where is smooth muscle located in the body?

a)

A: In the heart

b)

B: In the bones

c)

C: In the organs

d)

D: In the bones

84.

_______ movement that is unconsciously made.

a)

A: Voluntary

b)

B: Involuntary

85.

Is smooth muscle voluntary or involuntary?

a)

A: Voluntary

b)

B: Involuntary

86.
What is Tetanus also known as?
a)
Cradle Jaw
b)
Colic
c)
Lock Jaw
87.
Can you vaccinate against Influenza and Tetanus?
a)
Yes
b)
No
88.
Tetanus has an impact on the muscular system and the nervous system
a)
True
b)
False
89.

Tetanus is caused by the bacteria....

a)

Clostridium tetani

b)

Varcella zoster

c)

C.diptheria

d)

None of the above

90.

The toxin of late tetanus creates...

a)

Rampant coughing

b)

Muscle relaxation to the point of flaccid paralysis

c)

Muscle spasms to the point of paralysis

d)

None of the above

91.

Generally, the last muscle(s) the tetanus bacteria effects, which is lethal, is....

a)

The arms

b)

The diaphragm

c)

The heart

d)

The legs

92.

What toxin produced by another bacteria is the cure for late stage tetanus?

a)

Clorox

b)

Botox

c)

Ammonia

d)

None of the above

93.

Is tetanus caused by rust or the bacteria on rust/dirt?

a)

Rust!

b)

Bacteria on rust/dirt!

94.

The endospores in tetanus...

a)

Create a fake bacteria that the sanitizer attacks

b)

Allow the bacteria to breath

c)

Protect the bacteria in hostile environments

d)

None of the above

95.

The nickname for tetanus is...

a)

Lockjaw

b)

Lockup

c)

Locking disease

d)

Lockback

96.

If not cured, Tetanus has a ________ fatality rate.

a)

10%

b)

40%

c)

100%

d)

2%

97.

Clostridium tetani is a bacteria or a virus?

a)

Bacteria

b)

Virus

98.

All of the following are symptoms EXCEPT​

a)

Jaw cramping

b)

Trouble swallowing

c)

Exhaustion

d)

Fever

99.

Tetanus can be transmitted through

a)

deep cuts

b)

breathing

c)

person to person

d)

burns

100.
Treatment of Tetanus includes
a)
Penicillin
b)
Tetanus Antitoxin
c)
Muscle relaxants
d)
All of the above
101.

5.The ______________________ is a sheet of smooth muscles located below the lungs and separates them from the abdominal cavity.

a)

A. Lungs

b)

B. Diaphragm

c)

C. Alveoli

d)

D. Bronchioles

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