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BIO 165 (NSU)_Muscle and Nervous_Exam Review_Fall 2025

Total questions: 117

Worksheet time: 2hrs 38mins

Name
Class
Date
1.

What is the role of neuroglia in nervous tissue?

a)

Unable to regenerate

b)

Support and protect neurons

2.

Which type of muscle tissue is activated by the brain or hormones?

a)

Nervous

b)

Cardiac

3.

What is a characteristic of skeletal muscle tissue?

a)

Controlled by somatic nervous system

b)

Contracts involuntarily

4.

Which type of muscle tissue is striated and contracts involuntarily?

a)

Cardiac

b)

Smooth

5.

What is the function of neurons in terms of impulse transmission?

a)

Regenerate after injury

b)

Pass impulses to other neurons, muscle fibers, or glands

6.

Which type of muscle tissue contracts voluntarily?

a)

Skeletal

b)

Neuroglia

7.

What is a characteristic of cardiac muscle tissue?

a)

Contracts voluntarily

b)

Striated and contracts involuntarily

8.

Which type of muscle tissue is controlled by the somatic nervous system?

a)

Skeletal

b)

Smooth

9.

Which type of muscle tissue is non-striated?

a)

Smooth

b)

Skeletal

10.

The muscle tissue shown is called ______.

a)

Cardiac

b)

Smooth

11.

Name the tissue

a)

Cardiac muscle tissue

b)

Skeletal muscle tissue

c)

Striated muscle tissue

d)

Smooth muscle tissue

12.

Name this tissue

a)

Cardiac muscle tissue

b)

Skeletal muscle tissue

c)

Striated stratified epithelial tissue

d)

Smooth muscle tissue

13.

Name this tissue

a)

Cardiac muscle tissue

b)

Non-striated muscle tissue

c)

Smooth muscle tissue

d)

Skeletal muscle tissue

14.

What type of muscle makes up your heart?

a)

Cardiac

b)

Skeletal

c)

Smooth

d)

Canulary

15.

Which muscle tissue would be responsible for chewing food?

a)

Smooth

b)

Skeletal

c)

Cardiac

d)

Vestibular

16.

Which muscle tissue is located inside blood vessels?

a)

Cardiac

b)

Smooth

c)

Skeletal

d)

Vestibular

17.

What type of muscle(s) is involuntary?

a)

skeletal and smooth

b)

cardiac and skeletal

c)

smooth and cardiac

d)

skeletal

18.

What type of muscle lines the inside of the stomach?

a)

cardiac

b)

skeletal

c)

smooth

19.

Muscle contraction phase 1: Reorder these events leading to muscle contraction in their chronological order:

a)

Acetylcholine is released from the motoneuron

b)

Depolarization of the sarcolema

c)

Opening of voltage-gated calcium chanels

d)

Calcium exit the sarcoplasmic reticulum

e)

cytosolic Calcium initiate myosin attaching to actin filaments.

1)
2)
3)
4)
5)
20.

Muscle contraction phase 2: Reorder these events leading to muscle contraction in their chronological order:

a)

Calcium is released from sarcoplasmic reticulum into the cytosol of the muscle cell

b)

Calcium binds troponin

c)

Tropomyosin is released from actin filaments

d)

the myosin binding sites are now free to bind to myosin

e)

myosin binds to actin

1)
2)
3)
4)
5)
21.

Muscle contraction phase 3 : Reorder these events leading to muscle contraction in their chronological order (start with iP release):

a)

inorganic phosphate (iP) is released from the myosin head

b)

myosin head binds strongly to actin and power stroke occurs

c)

ADP is released fro myosin head and and ATP replaces it

d)

Myosin detaches from actin

e)

hydrolysis of ATP into ADP and iP and re-cocking of the myosin lever arm

1)
2)
3)
4)
5)
22.

Which events are necessary for terminating a muscle contraction?

a)

Stop of the release of acetylcholine from the motoneuron

b)

re-uptake or destruction of acetylcholine released earlier

c)

re-uptake of Calcium into the sarcoplasmic reticulum

d)

the troponin-tropomyosin complex attaches to the actin filament

e)

ATP is hydrolyzed

23.

What would happen if you blocked the function of Acetylcholine at the neuromuscular junction?

a)

paralysis

b)

tetanus (on-going contraction of the muscle)

c)

cramp (quick uncontrolled muscles

24.

___are regulatory proteins that cover the myosin binding site on the actin.

a)

troponin-tropomyosin

b)

sarcomere

c)

sarcolemma

d)

sarcoplasmic reticulum

25.

Which thin filament protein bind to Ca during muscle contraction?

a)

Actin

b)

Myosin

c)

Troponin

d)

Tropomyosin

26.

Click all that apply. Which of these make up a motor unit?

a)

Motor neuron

b)

Muscle fiber

c)

Muscle

d)

Nerve

27.

Which muscle characteristic allows the muscle to return to resting length after contraction?

a)

Contractility

b)

Excitability

c)

Extensibility

d)

Elasticity

28.

What is the name of the plasma membrane surrounding each muscle fiber?

a)

T Tubule

b)

Sarcolemma

c)

Sarcoplasm

d)

Nucleus

29.

What is the contractile unit of the muscle?

a)

Z disk

b)

Sarcomere

c)

Muscle fiber

d)

Muscle cell

30.

What protein makes up the thick filaments?

a)

Troponin

b)

Tropomyosin

c)

Myosin

d)

Actin

31.

What part of the muscle fiber stores Ca ions and releases them when stimulated?

a)

T tubule

b)

Sarcolemma

c)

Nucleus

d)

Sarcoplasmic reticulum

32.

What is the name of the location where the neuron and muscle fiber meet?

a)

Sarcoplasm

b)

Sacolemma

c)

Neuromuscular junction

d)

Axon terminal

33.

What is the name of the neurotransmitter that is released from the neuron to the sarcolemma?

a)

Acetylcholine

b)

Acetone

c)

ATP

d)

Calcium

34.

Which of these occurs first during a muscle contraction?

a)

The nerve signal reaches the neuromuscular junction

b)

Ach is released and opens Na ion channels

c)

The sarcomere shortens

d)

The myosin binds to the actin

35.

All of the following are 3 ways to generate ATP except

a)

Actin

b)

Cellular respiration

c)

Fermentation

d)

Creatine phosphate breakdown

36.

What is the contractile unit of the muscle?

a)

Z disk

b)

Sarcomere

c)

Muscle fiber

d)

Muscle cell

37.

Which of these occurs first during a muscle contraction?

a)

The nerve signal reaches the neuromuscular junction

b)

Ach is released and opens Na ion channels

c)

The sarcomere shortens

d)

The myosin binds to the actin

38.
Z represents
a)
Dendrite
b)
Axon Terminal
c)
Neurotransmitters
d)
Synapse
39.
Which of the following is NOT a muscle function?
a)
Movement of skeleton
b)
Heat generation
c)
Transport substances around body
d)
Moves neurons around body
40.
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
41.

What binds to the Myosin Head to cause it to detach from the Actin?

a)

ATP

b)

ADP

c)

CNS

d)

ETC

42.
Number 3 represents which of the following events
a)
action potential reaches the axon terminal
b)
sodium rushes into the muscle fiber
c)
potassium leaving the muscle fiber
d)
ACh crossing the synaptic cleft
43.

The condition in which a muscle remains contracted between stimuli without relaxing is called

a)

recruitment.

b)

tetanus.

c)

the all-or-none response.

d)

a motor unit.

e)

the lag phase.

44.

Creatine Phosphate:

a)

is produced by the process of anaerobic respiration.

b)

can replace ATP in binding myosin molecules during contraction.

c)

acts as an energy reserve in muscle tissue.

d)

is only formed during strenuous exercise.

e)

All of these are correct.

45.

Aerobic respiration:

a)

requires oxygen

b)

breaks down glucose

c)

produces ATP, CO2, and H2O

d)

takes place in mitochondria located within the muscle fiber

e)

All of these are true of aerobic respiration

46.

In a neuromuscular junction,

a)

the presynaptic terminal is separated from the postsynaptic terminal by the synaptic cleft.

b)

the presynaptic terminal contains vesicles filled with sodium ions.

c)

the presynaptic terminal contains receptor molecules for the neurotransmitter.

d)

the neurotransmitter causes an action potential in the presynaptic terminal.

e)

All of these conditions occur.

47.

Once the action potential reaches the motor neuron 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.

48.

What causes the action potential to start in the muscle fiber?

a)

Acetylcholine binds to the Na+ channel

b)

Acetylcholine binds to the synaptic vesicles

c)

the Ca2+ channels open

d)

The action potential is generated in the muscle cell

49.
The plasma membrane of a skeletal muscle cell is called the:
a)

sarcomere

b)

myofilament

c)

sarcolemma

d)

sarcoplasm

50.
The organelle that contains actin and myosin.
a)
Tendon
b)
myofilament
c)
myofibril
d)
Fiber
51.

Which type of signaling mechanism is chemical and is used to communicate between cells?

a)

Sensory Signal

b)

Neurotransmitter

c)

Graded Potential

d)

Action Potential

52.

What is the function of Schwann cells? 

a)

Conduct impulses

b)

Phagocytosis

c)

Make up the myelin sheath

d)

Slow conduction 

53.

What is the role of calcium in smooth muscles?

a)

calcium binds to troponin to remove tropomyosin

b)

calcium allows myosin and atp to bind

c)

calcium bind to and activates calmodulin

d)

calcium binds to sarcolemma receptors to initate sarcolemmal action potential

54.

What cell from the nervous system transmits electrical signals

a)

neuroglia

b)

Satellite cells

c)

neuron

d)

Schwann cells

55.

Curare is a plant-derived poison, traditionally used by indigenous people of South America for arrows and blowguns. When injected, curare reversibly prevents acetylcholine from binding to its receptor at the sarcolemma.

This will:

a)

Prevent muscle contraction.

b)

Cause uncontrolled muscle contraction.

c)

Be more deadly than the Five Point Palm Exploding Heart Technique

d)

Cause hyperventilation.

56.

Acetylcholinesterase is an enzyme that breaks down acetylcholine at the neuromuscular junction. Acetylcholinesterase is important for

a)

generating a sarcolemmal action potential

b)

Starting muscle contraction

c)

Both A and B

d)

Ending muscle contraction.

57.

The central nervous system consists of

a)

spinal nerves and brain

b)

cranium and spine

c)

cranial nerves and spinal nerves

d)

brain and spinal cord

58.

What is the enzyme that breaks down excess acetylcholine (ACh) in the synapse?

a)

Acetylcholinerase

b)

Acetylcholinesterase

c)

Acetic acid

d)

Choline

59.

The nervous system is divided into 2 types. The ​ (a)   nervous system consists of the ​ (b)   and spinal cord. The ​ (c)   nervous system consists of ​ (d)   .

Choose from the below words
central
brain
peripheral
nerves
vertebrae
blood vessels
60.
Identify the parts of the neuron.
61.

The neuron has short, branched parts called

a)

Axon

b)

Dendrites

c)

Nucleus

d)

Nerve Cells

62.

The nervous tissue is responsible for ____.

a)

to produce a contraction that changes both the length and the shape of the cell.

b)

It is responsible for coordinating and controlling many body activities

c)

transport oxygen from the lungs to the tissues

63.

______ is composed of Nervous Tissue.

a)

Lungs

b)

Brain

c)

Eyes

d)

Heart

64.

The neuron has a single long-part called the ___.

a)

Dendrites

b)

Nerve fibers

c)

Axon

d)

Nerve Endings

65.

Nerve impulse enables animals to move rapidly in response to ____.

a)

Body parts

b)

Myelin Sheath

c)

Stimuli

d)

Cytoplasm

66.

A neuron consists of a ______ which comprises of Nucleus and Cytoplasm.

a)

Nerve

b)

Cell body

c)

Nucleus

d)

Spinal Cord

67.

Which muscle type has intercalated discs?

a)

Cardiac muscle.

b)

Skeletal muscle.

c)

Smooth muscle.

68.

The __ nervous system carries impulses from the central nervous system to the heart and other organs.

a)

cerebral

b)

somatic

c)

muscular

d)

autonomic

69.

consists of sensory and motor neurons that transmit information to and from the central nervous system

a)

Central nervous system

b)

Cerebrum

c)

Peripheral nervous system

d)

Medulla oblongata

70.

part of the peripheral nervous system that transmits impulses to and from skin and skeletal muscles

a)

Somatic nervous system

b)

Hypothalamus

c)

Autonomic nervous system

d)

Sympathetic nervous system

71.

branch of the autonomic nervous system that controls organs and is most active during emergencies or stress

a)

Somatic nervous system

b)

Hypothalamus

c)

Autonomic nervous system

d)

Sympathetic nervous system

72.

The (a)   part of the autonomic nervous system is active during resting and digesting

Choose from the below words
parasympathetic
sympathetic
somatic
peripheral
73.

Match the following glial cells with their functions

a)

Ependymal cells

1.

Create, secrete and circulate cerebrospinal fluid

b)

Oligodendrocytes

2.

Produce the myelin sheath in the CNS

c)

Astrocytes

3.

Exchange materials between neurons and capillaries

d)

Microglia

4.

Immune defence against invading microorganisms

e)

Schwann cells

5.

Produce the myelin sheath in the PNS

74.
_____ neurons carry messages to the central nervous system
a)

Motor/efferent

b)

Motor/afferent

c)

Sensory/afferent

d)

Sensory/efferent

75.

Type of neuron located only in the brain and spinal cord that pass impulses from one neuron to another.

a)

Motor Neuron

b)

Interneuron

c)

Sensory Neuron

76.

What type of neuron is A?

a)

Sensory

b)

Inter

c)

Motor

77.

What type of neuron is C?

a)

Sensory

b)

Inter

c)

Motor

78.

Name an effector in this diagram.

a)

A

b)

B

c)

D

d)

E

e)

F

79.

In a reflex arc, the sensory neuron leads to the ___________ and the motor neuron leads to the __________

a)

Spinal cord, CNS

b)

CNS, muscle

c)

Spinal cord, muscle

d)

Muscle, CNS

80.

Which type of neuron causes a muscle to contract in a reflex arc?

a)

Motor Neuron

b)

Sensory Neuron

c)

Interneuron

d)

Effector

81.
The sense of taste detects ________________ stimuli.
a)
chemical
b)
mechanical
c)
electromagnetic
d)
thermal
82.
The sense of smell detects ________________ stimuli.
a)
chemical
b)
thermal
c)
mechanical
d)
electromagnetic
83.
The sense of touch detects ________________ stimuli.
a)
electromagnetic
b)
chemical
c)
mechanical
d)
pH
84.

In a reflex arc, the sensory neuron leads to the ___________ and the motor neuron leads to the __________

a)

Spinal cord, CNS

b)

CNS, muscle

c)

Spinal cord, muscle

d)

Muscle, CNS

85.

Which type of neuron causes a muscle to contract in a reflex arc?

a)

Motor Neuron

b)

Sensory Neuron

c)

Interneuron

d)

Effector

86.

Drag and drop the labels.

87.

What receptor reacts to physical forces?

a)

Chemoreceptor

b)

Mechanoreceptor

c)

Electroreceptor

d)

Thermoreceptor

88.

Which cranial nerve functions in balance and hearing?

a)

VIII Vestibulocochlear

b)

IX Glossopharyngeal

c)

XI Accessory

d)

V Trigeminal

89.

Which cranial nerve is known as the "mixed nerve"? It controls Blinking (ophthalmic portion) and maxilla & mandible sensation.

a)

IV Trochlear

b)

XI Accessory

c)

V Trigeminal

d)

VII Facial

90.

Which cranial nerve is for smelling?

a)

I Olfactory

b)

IV Trochlear

c)

IX Glossopharyngeal

d)

VIII Vestibulocochlear

91.

Which cranial nerve brings visual information into the brain?

a)

I Olfactory

b)

III Oculomotor

c)

IV Trochlear

d)

II Optic

92.

Which cranial nerve controls the scalp, facial muscles (for expressions) and taste information?

a)

IV Trochlear

b)

VII Facial

c)

V Trigeminal

d)

XI Accessory

93.

Organize each cranial nerve by type:

Categorize the following

Olfactory

Optic

Oculomotor

Trochlear

Trigeminal

Abducens

Facial

Vestibulocochlear

Glossopharyngeal

Vagus

Spinal Accessory

Hypoglossal

Sensory
Motor
Mixed
94.

Match the following receptors with the the type of sensory information they detect:

a)

Thermoreceptors

1.

Temperature

b)

Proprioceptors

2.

Where the body is in space

c)

Nociceptor

3.

Pain

d)

Mechanoreceptor

4.

Tactile stimulus

95.
Which ions are involved in an action potential?
a)
Na; Cl
b)
Na; K
c)
K; Cl
d)
Na; Ca
96.

Action potentials run along the ______ from ______ to ________.

a)

axon, dendrites, axon terminals

b)

axon, axon terminals, dendrites

c)

dendrites, axon, axon terminals

d)

axon terminals, axon, dendrites

97.

Which of the following is involved in maintaining the resting membrane potential of neurons?

a)

Na+/K+ ATPase pump moves 3Na+ in for every 2K+ out

b)

Na+/K+ ATPase pump moves 3K+ in for every 2Na+ out

c)

Na+/K+ ATPase pump moves 3Na+ out for every 2K+ in

d)

Na+/K+ ATPase pump moves 3K+ out for every 2Na+ in

98.
What is the normal resting potential of a neuron cell membrane?
a)
+40mV
b)
-30mV
c)
+55mV
d)
-70mV
99.

At resting membrane potential, neurons have more​ (a)   on the outside of the cell membrane.

Choose from the below words
Na+
K+
NaCl
Cl-
100.

At resting membrane potential, neurons have more​ (a)   on the inside of the cell membrane.

Choose from the below words
K+
NaCl
Na+
Cl-
101.
At which point on the diagram does depolarisation of the axon occur? 
a)
A
b)
B
c)
C
d)
D
102.
A membrane potential becoming less negative is called
a)

hyperpolarization

b)

depolarization

c)

repolarization

d)

polarization

103.

Which number on the graph represents the threshold potential?

a)

1

b)

2

c)

3

d)

4

e)

6

104.

When the membrane potential reaches +30mV, ________ channels open, ________ occurs, and ________ channels close.

a)

sodium, depolarization, potassium

b)

potassium, depoloarization, sodium

c)

sodium, repolarization, potassium

d)

postassium, repolarization, sodium

105.

An electrical impulse within a single neuron is called a

a)

synapse

b)

membrane potential

c)

action potential

d)

cell body

106.
When a neuron is not engaged in an impulse.
a)
Resting potential
b)
Action potential
c)
Neural potential
d)
Synaptic potential
107.

When is the potassium channel open?

a)

during rest only

b)

during repolarization only

c)

during depolarization only

d)

all the time

108.

Reorder the following (starting at beginning)

a)

Resting potential (-70mV), stimulus received

b)

Na+ gates open, threshold reached (-55 mV)

c)

Na+ gates open

d)

Na+ moves into the axon

e)

Action potential reached (+30mV)

1)
2)
3)
4)
5)
109.

Reorder the following (starting at the action potential)

a)

Action potential reached (+30mV)

b)

Na+ inactivation gates close, K+ gates open

c)

K+ exits the cell, repolarization

d)

K+ still open, goes below -70 mV, hyperpolarization

e)

Na/K pump restores to resting potential

1)
2)
3)
4)
5)
110.
When a neuron is depolarized, what are the first channels to open?
a)
Sodium
b)
Potassium
c)
Calcium
d)
ACTH
111.
Why is -55 mV a significant number?
a)
This is the largest charge achieved during an action potential
b)
This is the threshold required to complete an action potential
c)
This is the resting charge of a neuron
d)
This is the charge when all the sodium is inside the cell
112.
Why is hyperpolarization important?
a)
It makes sure the neuron is healthy
b)
It prevents a second, unwanted signal from being sent
c)
It makes sure the neurons are in the correct space
d)
It makes sure the charge is back at -70 mV
113.

Why is the speed of an impulse increased if a neurone is wrapped in myelin?

a)

potassium ions flow out of the neurone faster

b)

myelin insulates the neurone so the temperature increases

c)

the impulse can jump from node to node

d)

it allows neurones to touch each other

114.
After depolarization what happens to restore resting potential? 
a)
Sodium channels open & sodium ions diffuse out of the neuron.
b)
Potassium channels open & potassium ions diffuse into the neuron.
c)

Potassium channels open and potassium ions diffuse out the neuron.

d)
Sodium channels open and sodium ions diffuse into the neuron. 
115.
What number on the graph represents the Repolarization phase?
a)
1
b)
2
c)
3
d)
4
116.
What number on the graph represents the Hyperpolarization phase?
a)
1
b)
2
c)
3
d)
4
117.
What number on the graph represents the Depolarization phase?
a)
1
b)
2
c)
3
d)
4