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Nervous System

Total questions: 46

Worksheet time: 32mins

Name
Class
Date
1.

What is the name for a cell in the nervous system?

a)

Corpus Callosum

b)

Neuron

c)

Node of Ranvier

d)

Red Blood Cell

2.

Which part of a neuron receives stimuli?

a)

Dendrites

b)

Axon

c)

Myelin Sheath

d)

Nucleus

3.
Several important involuntary functions, such as breathing and heartbeat, are controlled by the _
a)
dendrites
b)
cerebellum
c)
brain stem
d)
neurons
4.
What two things are found in the central nervous system?
a)
brain/spinal cord
b)
spinal cord/motor neurons
c)
motor/sensory neurons
d)
only brain
5.

Which part of the neuron is a long fiber that SENDS information to other cells?

a)

dendrite

b)

terminal

c)

cell body

d)

axon

6.
What are the three distinct parts of the brain?
a)
Arteries, Veins, Capillaries
b)
Cerebrum, Cerebellum, Brain Stem
c)
Muscle, Epithelial, Smooth
d)
Cardiac, Smooth, Skeletal
7.

the point at which an impulse from one nerve cell is communicated to another cell is the____...

a)

Synapse

b)

collateral branch

c)

receptor

d)

outflux

8.
Gaps between the myelin sheath along an axon are called
a)
Dendrites
b)
Schwann cells
c)
Terminal branches
d)
Nodes of Ranvier
9.
The part of the neuron that insulates the axon and increases the speed of the neural message within the neuron.
a)
Synapse
b)
Dendrite
c)
Myelin Sheath
d)
Axon Terminal Button
10.
This part of the neuron stores then releases neurotransmitters into the synapse.
a)
Axon 
b)
Dendrite
c)
Myelin Sheath
d)
Axon Terminal
11.

What is represented by D?

a)

Neurotransmitter

b)

Receptor

c)

Plasma membrane

d)

Vesicle

e)

Synapse

12.

What is represented by C?

a)

Neurotransmitter

b)

Receptor

c)

Plasma membrane

d)

Vesicle

e)

Synapse

13.

What is represented by B?

a)

Neurotransmitter

b)

Receptor

c)

Plasma membrane

d)

Vesicle

e)

Synapse

14.
The function of the ependymal cells is ___________.
a)
Protection of the delicate neuron axon
b)
Maintain the health of the neuron
c)
Circulates the cerebrospinal fluid
d)
Insulate the electrical impulse
15.
What is the main function of oligodendrocytes?
a)
Production of insulation and protection
b)
Maintain the health of the neuron
c)
Brace and support the neuron to it's nurtient supply
d)
Lining of the central cavities to circulate spinal fluid
16.

Neuroglial cells that form the fatty myelin sheath on neurons in the CNS are ___________ in the PNS are ________________?

a)

ganglia and oligodendroglia

b)

astrocytes and schwann cells

c)

schwann cells and oligodendroglia

d)

oligodendroglia and schwann cells

17.

Small cells that engulf and destroy microbes and cellular debris in the CNS

a)

microglia

b)

horns

c)

neuroglia

d)

astrocytes

18.
Which ions are involved in the electrical nerve impulse?
a)
Iodine and Sodium
b)
Potassium and Sodium
c)
Iron and Sodium
d)
Calcium and Iodine
19.

When a neuron is at REST,

a)

the inside of the neuron is negatively charged compared to the outside.

b)

the inside of the neuron is positively charged compared to the outside.

c)

there is no charge difference established

d)

none of these is true

20.
Acetylcholine, Dopamine, GABA, and Serotonin are all
a)
Dendrites
b)
Neurotransmitters
c)
Endorphins
d)
Neurons
21.
Through which type of nerve fibers do impulses travel fastest?
a)
Unmyelinated
b)
Myelinated
c)
Somatic
d)
Autonomic
22.

At resting potential, the ion distribution inside and outside of a neuron is such that __________ ions are most abundant on the outside of the cell, while __________ ions are most abundant on the inside of the cell.

a)

Potassium; sodium

b)

Sodium; potassium

c)

Calcium; potassium

d)

Calcium; sodium

23.

A bundle of neurons is called a...

a)

Super Neuron

b)

Mega Neuron

c)

Nerve

d)

Inter Neuron

24.
A loss of hearing could be associated with which cranial nerve?
a)
Olfactory
b)
Trigeminal
c)
Vestibulocochlear
d)
Accessory
25.
Moves the tongue
a)
Trigeminal
b)
Facial
c)
Hypoglossal
d)
Accessory
26.

Vagus Nerve

a)

swallowing

b)

saliva production

c)

digestive and heart

d)

tongue movements

27.
Numbed by the dentist when you're getting a cavity filled in the lower jaw
a)
Occulomotor
b)
Trigeminal
c)
Facial
d)
Glossopharyngeal
28.

Which one has two hemispheres?

a)

thalamus

b)

medulla

c)

reticular formation

d)

cerebrum

29.

The right hemisphere of your brain controls _______________.

a)

the left side of your body

b)

the right side of your body

c)

your entire body

d)

the entire brain

30.

The connecting piece for the right hemisphere and the left hemisphere is called the ______________________________.

a)

amygdala

b)

corpus connector

c)

corpus collossum

d)

cortex

31.
-70 mV is the measure of a
a)
Threshold Potential
b)
Action Potential
c)
Resting Potential
d)
End Point Potential
32.
A membrane potential becoming less negative is called
a)
hyperpolarization
b)
depolarization
c)
repolarization
d)
polarization
33.
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
34.

A clear fluid that helps the cornea keep its rounded shape

a)

aqueous humor

b)

blind spot

c)

cones

d)

cornea

35.

The place where all nerves from the retina join to form the optic nerve. Each eye has a _____ _____ where there are no light-sensitive cells

a)

aqueous humor

b)

blind spot

c)

cones

d)

cornea

36.

A tough, clear covering over the iris and the pupil that helps protect the eye. Light bends as it passes through the _______ before making its way to the lens.

a)

aqueous humor

b)

blind spot

c)

cones

d)

cornea

37.

A muscle that controls how much light enters the eye. It is suspended between the cornea and the lens. Human ________ come in many colors, including brown, blue, green, and gray.

a)

iris

b)

lens

c)

myelin

d)

optic nerve

38.

A clear flexible structure that makes an image on the eye’s retina. The _____ is flexible so that it can change shape, focusing on objects that are close up and objects that are far away.

a)

iris

b)

lens

c)

myelin

d)

optic nerve

39.

The bundle of nerve fibers that carry information from the retina to the brain.

a)

iris

b)

lens

c)

myelin

d)

optic nerve

40.

The _________ is the dark circle in the center of your iris. It’s a hole that lets light into the inner eye.

a)

pupil

b)

retina

c)

rods

d)

sclera

41.

The layer of light-sensitive cells at the back of the eye. The _________ detects images focused by the cornea and the lens and is connected to the brain by the optic nerve.

a)

pupil

b)

retina

c)

rods

d)

sclera

42.

The thick, tough, white outer covering of the eyeball.

a)

pupil

b)

retina

c)

rods

d)

sclera

43.

The colorful, shiny material located behind the retina. Found in animals with good night vision, the ________ reflects light back through the retina.

a)

tapetum

b)

vitreous humor

44.

The thick clear jelly that helps give the eyeball its shape

a)

aqueous humor

b)

vitreous humor

45.
Which neurons carry messages from the brain to the body?
a)
sensory neuron
b)
motor neuron
c)
interneuron
d)
afferent
46.

__________ carry messages between sensory neurons and motor neurons.

a)

Active Neurons

b)

Interneurons

c)

Refraction Neurons

d)

Flower Neurons

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