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Intro to the Nervous System

Total questions: 20

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

Nerve Cells are also called:

a)

Capillaries

b)

Synapses

c)

Neurons

d)

Glial cells

2.
The part of the neuron that receives signals is the:
a)
Axon
b)
Dendrite
c)
Axon Terminal
d)
Cell Body
3.
The electrical messages sent through the nervous system are called ____________. 
a)
Impulses
b)
Neurons
c)
Dendrites
d)
Transmissions
4.

what might be a job of a motor neuron?

a)

connecting to a muscle and helping you move

b)

connecting within the brain to help you make a decision

c)

sending a message toward your brain from a pain receptor in your skin

d)

all of these

5.

What is the primary function (purpose) of the human nervous system ?

a)

Helps blood circulate through the body and allows for cellular respiration to take place.

b)

Uses electrochemical signal to help parts of the body communicate with each other and react rapidly to changes both inside and outside the body.

c)

Provides support to the muscles and glands and communicates through chemical signals released into the blood stream.

d)

Allows for problem solving and the ability to read and write.

6.

Something that makes an organism react in a certain way. This can be internal or external.

a)

stimulus

b)

response

c)

integration centre

d)

homeostasis

7.

The plant bending and growing towards the light is the plant's

a)

response

b)

stimulus

c)

homeostasis

d)

negative feedback

8.

Defined by their ability to conduct signals towards the CNS (Central nervous system).

a)

Afferent nerves

b)

Efferent nerves

c)

Interneurons

9.

Part of neuron that holds all the organelles.

a)

Dendrite

b)

Cell Body

c)

Axon

d)

Synaptic terminal

e)

Myelin Sheath

10.

Colored green

a)

Dendrite

b)

Cell Body

c)

Axon

d)

End brush

e)

Myelin Sheath

11.

colored red

a)

Dendrite

b)

Cell Body

c)

Axon

d)

End brush

e)

Myelin Sheath

12.

The nervous system works together with the endocrine system to regulate and maintain what?

a)

Bone growth

b)

Homeostasis

c)

The immune system

d)

Balanced hormone levels

13.
What part of the neuron is myelinated?
a)
Cell Body
b)
Axon
c)
Synapse
d)
Dendrite
14.

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

a)

Dendrite

b)

Axon

c)

Myelin Sheath

d)

Node of Ranvier

15.

These are chemicals that are used for communication

a)

Neurotransmitters

b)

Polarization

c)

Synaptic Vesicles

d)

Action potential

16.
a signal molecule that transmits nerve impulses across synapses
a)
neuron
b)
neurotransmitter
c)
nerve
d)
action potential
17.
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
18.

Select two examples of effectors.

a)

Neuron

b)

Gland

c)

Muscle

d)

Receptor

19.

Where would the nerve impulse start in this reflex arc?

a)

A

b)

C

c)

D

d)

E

20.

Which is the correct order of neurons in a reflex arc?

a)

Sensory neuron, motor neuron, interneuron

b)

Interneuron, sensory neuron, motor neuron

c)

Sensory neuron, interneuron, motor neuron