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Nervous System: Organization, Classification, Structure, Anatomy

Total questions: 43

Worksheet time: 29mins

Name
Class
Date
1.

The two major parts of the nervous system are the

a)

brain and spinal cord

b)

central and somatic nervous systems

c)

sympathetic and parasympathetic systems.

d)

peripheral and central nervous systems

2.

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

3.

Which of the following is regulated by the autonomic nervous system

a)

Breathing

b)

Kicking a soccer ball

c)

Balancing on one foot

d)

Raising your hand

4.

The branch like figures that receive impulses & conducts them to the cell body

a)

Dendrite

b)

Axon

c)

Cell Body

d)

Myelin Sheath

5.

What is number 3 pointing at on the neuron?

a)

Dendrite

b)

Axon

c)

Myelin Sheath

d)

Soma

6.

What part of the neuron is number 4 pointing at?

a)

Dendrite

b)

Axon Terminal

c)

Axon

d)

Myelin Sheath

7.

Which part of the Neuron is number 1 pointing at?

a)

Dendrite

b)

Cell body

c)

Axon

d)

Nucleus

8.
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
9.
This part of the neuron stores then releases neurotransmitters into the synapse.
a)
Axon 
b)
Dendrite
c)
Myelin Sheath
d)
Axon Terminal
10.

Which part sends nerve impulse to the next cell?

a)

Dendrite

b)

Axon

c)

Axon Terminal

d)

Cell Body

11.

What is the gap between two neurons called?

a)

Impulse

b)

Synapse/Synaptic cleft

c)

CNS

d)

Inter neuron

12.
The nervous system subdivision that is composed of the brain and spinal cord.
a)
Autonomic Nervous Sytem
b)
CNS
c)
PNS
d)
Somatic Nervous System
13.

What is a nerve cell?

a)

axon

b)

neuron

c)

dendrite

d)

myelin

14.

Cranial nerves and spinal nerves are part of the peripheral nervous system.

a)

True

b)

False

15.

Becoming paralyzed as a result of a fall damages what nervous system?

a)

Sympathetic

b)

Peripheral

c)

Central

d)

Autonomic

16.

Identify the 2 labels that could apply to the nervous system below. You smell Grandma's cooking and you start to drool.

a)

Somatic

b)

Autonomic

c)

Sensory

d)

Motor

17.

Identify the 2 labels that could apply to the nervous system below. The muscles of your stomach move to begin digesting food.

a)

Sensory

b)

Motor

c)

Autonomic

d)

Somatic

18.

Identify the 2 labels that could apply to the nervous system response below. You smash a fly with your hand.

a)

Motor

b)

Sensory

c)

Autonomic

d)

Somatic

19.

Which of the following cells protect the nervous system from infection

a)

microglial

b)

astrocyte

c)

oligodendrocyte

d)

ependymal cell

20.

Which of the following glial cells circulate cerebrospinal fluid?

a)

astrocyte

b)

oligodendrocyte

c)

microglial cell

d)

ependymal cell

21.
These nerves only carry signals TO the central nervous system.
a)
Motor nerves
b)
Efferent nerves
c)
Mixed nerves
d)
Afferent nerves
22.
_____ neurons carry messages to the central nervous system
a)
Motor
b)
Inter
c)
Sensory
d)
Fun
23.
_____ neurons carry  messages away from the central nervous system.
a)
Motor
b)
Inter
c)
Sensory
d)
Flower
24.

The sympathetic and parasympathetic nervous systems together make up which division of the nervous system?

a)

Central

b)

Autonomic

c)

Somatic

d)

Peripheral

e)

Regional

25.
Myelinated fibers (tracts) form ________ matter while unmyelinated fibers form ________ matter. 
a)
sensory, motor
b)
gray, white
c)
motor, sensory
d)
white, gray
26.
The major role of the interneuron (association neuron) is to ________.
a)
carry information from the central nervous system to muscles and/or the viscera
b)
form a lipid-protein (lipoprotein) cell membrane on the outside of axons
c)
transmit nerve impulses from the skin and organs to the central nervous system   
d)
connect motor and sensory neurons in their pathways
27.
What tissue is not innervated by the autonomic nervous system?
a)
Glands
b)
Skeletal Muscle
c)
Cardiac Muscle
d)
Smooth Muscle
28.

What contains the nucleus of the neuron?

a)

Terminal Bouton

b)

Cell Body

c)

Axon Hillock

d)

Myelin Sheath

29.
Gaps in the myelin sheath are called this.
a)
Nodes of Ranvier
b)
Axon terminals 
c)
Synapses
d)
Neurotransmitters
30.

Chemicals released into a cleft when an action potential reaches the terminal are called.....

a)

ligand gated ion channels

b)

synaptic vesicles

c)

neurotransmitters

d)

voltage gated ion channels

31.

Which pattern shows how signals are transmitted from the presynaptic neuron to the post synaptic neuron

a)

electrical --> electrical

b)

electrical --> chemical

c)

chemical --> electrical --> chemical

d)

electrical --> chemical --> electrical

32.
What generates a nerve impulse on the post-synaptic membrane? 
a)
Calcium binding with a receptor site
b)
Potassium leaking into the post-synaptic membrane 
c)
Neurotransmitter binding with receptor sites
d)
Neurotransmitter being removed from the synapse
33.

Neurotransmitters are released from the

a)

Dendrites

b)

Post-synaptic neuron

c)

Presynaptic neuron

d)

Schwann Cells

34.

What chemical is activated by the action potential in the presynaptic neuron that causes the vesicles containing neurotranmitters to move toward the synaptic cleft?

a)

calcium

b)

potassium

c)

sodium

d)

phosphorus

35.

Which side of the synapse contains ligand-gated ion channels?

a)

presynaptic

b)

postsynaptic

c)

both

36.
When a neuron is depolarized, what are the first channels to open?
a)
Sodium
b)
Potassium
c)
Calcium
d)
ACTH
37.
When a neuron is resting, the inside of the axon has a ____________ charge.
a)
positive
b)
negative
38.
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
39.

An electrical impulse within a single neuron is called a

a)

synapse

b)

membrane potential

c)

action potential

d)

cell body

40.

Which one is involved in restoring the ion concentrations of the sodium and postassium ions inside and outside the neuron after repolarization?

a)

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

b)

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

c)

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

d)

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

41.
In resting potential, neurons have more _________ on the outside of the cell membrane.
a)
K+
b)
NaCl
c)
Na+
d)
Cl-
42.

When is the potassium channel open?

a)

during rest only

b)

during repolarization only

c)

during depolarization only

d)

all the time

43.

As the neuron fires, there's a reversal in _____ as the axon undergoes ________.

a)

direction, depolarization

b)

charge, depolarization

c)

direction, repolarization

d)

charge, repolarization

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