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Nervous system Review 1

Total questions: 24

Worksheet time: 1hrs 7mins

Name
Class
Date
1.
What is the central nervous system (CNS) made of?
a)
brain and spinal cord
b)
brain and cranial nerves
c)
spinal cord and spinal nerves
d)
cranial nerves and spinal nerves
2.
What is the purpose of the myelin sheath on the axon?
a)
To maintain temperature
b)
To improve conductivity
c)
To protect the axon
d)
To release neurotransmitters
3.
Sensory neurons carry nerve impulses from the sense organs and internal organs (like your stomach) to the
a)
peripheral nervous system (PNS)
b)
central nervous system (CNS)
c)
muscles
d)
sense organs
4.
What is NOT part of the peripheral nervous system (PNS)?
a)
axons
b)
sensory receptors
c)
spinal cord
d)
motor neurons
5.
a signal molecule that transmits nerve impulses across synapses
a)
neuron
b)
neurotransmitter
c)
nerve
d)
action potential
6.
part of a neuron that receives information from other neurons
a)
axon
b)
dendrites
c)
myelin sheath
d)
synapse
7.
The part of the neuron that takes information away from the cell body is called a(n) _____________.
a)
dendrite
b)
axon
c)
cell body
d)
Schwann cell
8.
Label the Neuron-What does the letter "H" represent?
a)
Myelin Sheath
b)
Axon
c)
Axon Terminal
d)
Dendrite
9.
Label the Neuron-What does the letter "F" represent?
a)
Myelin Sheath
b)
Axon
c)
Axon Terminal
d)
Dendrite
10.
Label the Neuron-What does the letter "C" represent?
a)
Dendrite
b)
Axon
c)
Axon Terminal
d)
Cell Body
11.
Label the Neuron-What does the letter "A" represent?
a)
Dendrite
b)
Axon
c)
Myelin Sheath
d)
Node of Ranvier
12.
The long, fiber like part of a neuron which the cell sends information to receiving neurons
a)
axon 
b)
dendrite
c)
axon terminal
d)
gene
13.

What is the gap between two neurons called?

a)

Impulse

b)

Synapse

c)

CNS

d)

Inter neuron

14.

Which statement best describes a reflex arc?

a)

Slow response that you have to think about

b)

Rapid response to protect body from harm

15.

Where would the nerve impulse start in this reflex arc?

a)

A

b)

C

c)

D

d)

E

16.

_____ neurons carry messages away from the central nervous system and out to muscles or glands. The RED neuron in diagram.

a)

sensory

b)

motor

c)

inter

d)

central

17.

Which way does an impulse travel

a)

From dendrite to axon and out axon terminal

b)

From axon to axon and out dendrite terminal

c)

From axon to dendrite and out axon terminal

d)

From cell body to dendrite and out axon terminal

18.
What is "stimuli"?
a)
A major organ in the brain that is a part of the nervous system. 
b)
What your body does to a change or a signal. 
c)
A change or a signal your body receives. 
19.
A_______is what your body does in reaction to a stimuli. 
a)
reaction
b)
response
c)
change
20.

The speed of neural conduction between neurons will result in difficulties in speaking, vision, and balance if the ________________ insulating the axons is damaged or removed.

a)

Axon

b)

Myelin Sheath

c)

Nucleus

d)

Brain

21.

Name an effector in this diagram.

a)

A

b)

B

c)

D

d)

E

e)

F

22.

Select two examples of effectors.

a)

Neuron

b)

Gland

c)

Muscle

d)

Receptor

23.

An example of a reflex action includes

a)

Touching a butterfly

b)

Brushing your hand against the side of your body

c)

Touching a hot stove

d)

Your legs moving as you walk

24.

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

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