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Neurons, Cranial Nerves, Divisions of NS, Action Potentials

Total questions: 47

Worksheet time: 27mins

Name
Class
Date
1.

Nerve associated with sense of smell

a)

Facial

b)

Optic

c)

Olfactory

d)

abducens

2.

Numbed by the dentist when getting a cavity filled in your lower jaw

a)

Trochlear

b)

Trigeminal

c)

Facial

d)

Vagus

3.

conducts impulses to the muscles of the neck and back

a)

vagus

b)

accessory

c)

Glossopharyngeal

d)

Abducens

4.

responsible for balance

a)

Vagus

b)

Accessory

c)

Trochlear

d)

Vestibulocochlear

5.

Nerve used in swallowing

a)

Trigeminal

b)

Trochlear

c)

Glossopharyngeal

d)

vagus

6.

Helps focus the lens in the eye and control the amount of light entering the eye.

a)

Oculomotor

b)

Trigeminal

c)

Trochlear

d)

Facial

7.

Responsible for hearing

a)

optic

b)

vestibulocochlear

c)

olfactory

d)

Trigeminal

8.

controls heart rate

a)

vagus

b)

trigeminal

c)

abducens

d)

optic

9.

Sight

a)

olfactory

b)

optic

c)

trigeminal

d)

vagus

10.

Motor fibers to the face, causes facial expressions

a)

Trigeminal

b)

facial

c)

optic

d)

abducens

11.

Which of the following is a sensory nerve

a)

Optic

b)

accessory

c)

Hypoglossal

d)

trochlear

12.

A nerve fiber is a ___

a)

axon

b)

dendrite

c)

fascicle

d)

cell body

13.

There are ______ pairs of cranial nerves

a)

10

b)

12

c)

31

d)

14

14.

Cranial nerves are part of the

a)

central nervous system

b)

peripheral nervous system

15.

Some cranial nerves affect the parasympathetic nervous system

a)

True

b)

False

16.

Which type of cranial nerves control movement of a part of the body?

a)

Sensory

b)

Motor

c)

Mixed

17.

The major function of your nervous system shown by #2 is

a)

Accommodation

b)

Integration

c)

Regulation

d)

Motor input

e)

Adaptation

18.

The major function of your nervous system demonstrated by #3 is:

a)

sensory input

b)

integration

c)

motor output

19.

The major function of your nervous system demonstrated by #1 is:

a)

sensory input

b)

integration

c)

motor output

20.

Which of the following is a function of the nervous system?

a)

gathers information

b)

processes information

c)

transmits information

d)

all of the above

21.
What is the central nervous system (CNS) made up of?
a)
brain & spinal cord
b)
sensory neurons
c)
motor neurons
d)
sensory receptors
22.

The "fight or flight" response during threatening situations is the role of the:

a)
sympathetic nervous system
b)
parasympathetic system
c)
somatic nervous system
d)

afferent pathway

23.
The part of the nervous system that consists of nerves that branch out from the CNS (central nervous system) and connect to other body parts
a)
Sympathetic
b)
Parasympathetic
c)
Autonomic
d)
Peripheral
24.
The _____part of the autonomic nervous system is active during resting.
a)
sympathetic
b)
parasympathetic
c)
somatic
d)
peripheral
25.
Part of the peripheral that controls conscious activities
a)
autonomic
b)
somatic
c)
sympathetic
d)
parasympathetic
26.

What are the two divisions of the autonomic nervous system?

a)

central and peripheral

b)

parasympathetic and sympathetic

c)

brain and spinal cord

d)

nerves and ganglia

27.

Which action would activate the sympathetic nervous system the most?

a)

throwing a ball

b)

walking

c)

being chased by a bear

d)

eating breakfast

28.

Which division of the peripheral nervous system is associated with voluntary movement?

a)

Somatic nervous system

b)

Sympathetic nervous system

c)

Parasympathetic nervous system

d)

Central nervous system

29.

What is another name for a nerve cell?

a)

tissue

b)

impulse

c)

neuron

d)

stimuli

30.

What part of the neuron receives the message from the previous neuron?

a)

myelin

b)

dendrites

c)

nucleus

d)

nerve endings

31.

What part of the neuron can be described as a tail-like structure that carries the impulse away from the cell body(from dendrite to nerve endings)?

a)

axon

b)

dendrites

c)

nucleus

d)

cell body

32.

Label the neuron: What part of a neuron is number 4?

a)

cell body

b)

axon terminals

c)

dendrites

d)

nucleus

33.

Which number represents the cell body of a neuron?

a)

1

b)

2

c)

3

d)

4

34.

The correct direction of the neural impulse within one neuron

a)

Cell Body to Axon

b)

Axon Terminal to Dendrite

c)

Dendrite to Axon Terminal

d)

Axon Terminal to Cell Body

35.
Which part of the neuron contains organelles, such as the nucleus?
a)
axon
b)
soma
c)
synaptic end bulbs
d)
dendrites
36.
Which part of the neuron is a lipid layer that insulates the axon and speeds up how quickly an impulse can pass?
a)
myelin sheath
b)
nodes of Ranvier
c)
Schwann cells
d)
axon terminals
37.
Which part of the neuron are gaps in the myelin sheath?
a)
synaptic end bulbs
b)
nodes of Ranvier
c)
axon hillocks
d)
Schwann cells
38.
Which part of the neuron produces the myelin sheath in the peripheral nervous system?
a)
axon hillock
b)
nodes of Ranvier
c)
synaptic end bulbs
d)
Schwann cells
39.

Label the Neuron-What does the letter "F" represent?

a)

Schwann Cells

b)

Myelin Sheath

c)

Axon

d)

Cell Body

40.
What number(s) on the graph represents the Resting Potential?
a)
1 and 2
b)
1 and 5
c)
2 and 3
d)
3 and 4
41.
When a neuron is depolarized, what are the first channels to open?
a)
Sodium
b)
Potassium
c)
Calcium
d)
ACTH
42.
When a neuron is resting, the inside of the axon has a ____________ charge.
a)
-55 mV
b)
-70 mV
c)
40 mV
d)
-75 mV
43.
When a neuron is not engaged in an impulse.
a)
Resting potential
b)
Action potential
c)
Neural potential
d)
Synaptic potential
44.
What number on the graph represents the Depolarization phase?
a)
1
b)
2
c)
3
d)
4
45.
The sodium-potassium pump....
a)
Sends (Na+) into the cell
b)
Sends (K+) into the cell
c)
Exchanges (K+) & (Na+) during depolarization
d)
Exchanges (K+) & (Na+) during hyperpolarization
46.
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
47.

Which channels open SECOND at time #2?

a)

leak channels only

b)

gated Na channels

c)

gated K channels

d)

none

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