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WorksheetsUnit 4 Exam Review L1 & L2
Total questions: 42
Worksheet time: 31mins
Name
Class
Date
1.
Label the Neuron-What does the letter "A" represent?
a)
Axon
b)
Dendrite
c)
Axon Terminal
d)
Cell Body
2.
Label the Neuron-What does the letter "D" represent?
a)
Dendrite
b)
Axon
c)
Myelin Sheath
d)
Axon Hillock
3.
Label the Neuron-What does the letter "E" represent?
a)
Schwann Cell
b)
Node of Ranvier
c)
Axon Terminal
d)
Myelin Sheath
4.
The part of the neuron that receives messages from other neurons
a)
axon
b)
dendrite
c)
cell body
d)
Schwann cell
5.
Identify the part of the neuron
a)
axon
b)
axon terminal
c)
dendrite
d)
Node of Ranvier
6.
Identify the part of the neuron
a)
axon
b)
axon terminal
c)
dendrite
d)
Node of Ranvier
7.
Sends impulses AWAY from CNS to muscle and glands.
a)
Motor Neuron
b)
Sensory Neuron
c)
Interneuron
8.
What direction does an electrical signal move?
a)
Dendrite, Cell body, Axon
b)
Cell body, Axon, Dendrite
c)
Cell body, Dendrite, Axon
d)
Axon, Cell Body, Dendrite
9.
Label the Neuron-What does the letter "H" represent?
a)
Axon
b)
Dendrite
c)
Axon Terminal
d)
Synaptic Bulb/Knob
10.
The skeletal muscles are controlled by this part of the nervous system.
a)
Somatic Nervous system
b)
Autonomic Nervous system
c)
astrocytes
d)
glial cells
11.
The smooth muscles and glands are controlled by this part of the nervous system.
a)
Somatic Nervous system
b)
Autonomic Nervous system
c)
astrocytes
d)
glial cells
12.
Consists of the brain and spinal cord.
a)
Autonomic Nervous System
b)
Somatic Nervous System
c)
Peripheral Nervous System
d)
Central Nervous system
13.
Nerves throughout the body other than the brain and spinal cord.
a)
Autonomic Nervous System
b)
Somatic Nervous system
c)
Peripheral Nervous System
d)
Central Nervous System
14.
Cells that are found between neurons and blood vessels.
a)
oligodendrocyte
b)
microglial cell
c)
astrocyte
d)
ependymal cell
15.
Neurons that have a single process extending from the cell body.
a)
unipolar
b)
bipolar
c)
dipolar
d)
multipolar
16.
White matter has this insulating covering that increases the rate at which an impulse can be carried.
a)
Schwann Cell
b)
axon membrane
c)
Neurilemma
d)
Myelin Sheath
17.
Neurons that have two processes extending from the cell body
a)
unpolar
b)
bipolar
c)
polar
d)
multipolar
18.
The junction between two communicating neurons.
a)
synapse
b)
neuromuscular junction
c)
dendrite
d)
axon
19.
Chemical messengers that move across the synapse.
a)
vesicles
b)
sodium
c)
potassium
d)
neurotransmitters
20.
Align along axons and provide insulating layers of myelin in the brain and spinal cord.
a)
microglia
b)
astrocytes
c)
ependymal cells
d)
oligodendrocytes
21.
Gaps in the myelin sheath.
a)
nodes of Ranvier
b)
axon endings
c)
synapse
d)
neurotransmitters
22.
conduct impulses from peripheral body parts to the brain or spinal cord.
a)
motor neurons
b)
sensory neurons
c)
interneurons
d)
microglia
23.
Conduct impulses from one part of the brain or spinal cord to another part of the brain or spinal cord.
a)
motor neurons
b)
sensory neurons
c)
interneurons
d)
microglia
24.
are multipolar and conduct impulses out of the brain or spinal cord to effectors.
a)
motor neurons
b)
sensory neurons
c)
interneurons
d)
microglia
25.
These cells have the same function as oligodendrocytes but are found in the peripheral nervous system (PNS).
a)
microglia
b)
astrocytes
c)
ependymal cells
d)
Schwann cells
26.
An electrical impulse within a single neuron is called a
a)
synapse
b)
membrane potential
c)
action potential
d)
cell body
27.
Depolarization is occuring at number
a)
1
b)
2
c)
4
d)
5
28.
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
29.
When a membrane potential reaches +30mV, ________ channels open, ________ occurs, and ________ channels close.
a)
Sodium, depolarization, potassium
b)
Potassium, depoloarization, sodium
c)
sodium, repolarization, potassium
d)
postassium, repolarization, sodium
30.
What number on the graph represents the Hyperpolarization phase?
a)
1
b)
2
c)
3
d)
4
31.
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
32.
What is the normal resting potential of a neuron cell membrane?
a)
+40mV
b)
-30mV
c)
+55mV
d)
-70mV
33.
Which ions are involved in an action potential?
a)
Na; Cl
b)
Na; K
c)
K; Cl
d)
Na; Ca
34.
At which point on the diagram does depolarisation of the axon occur?
a)
A
b)
B
c)
C
d)
D
35.
When a neuron is not engaged in an impulse.
a)
Resting potential
b)
Action potential
c)
Neural potential
d)
Synaptic potential
36.
What number(s) on the graph represents the THRESHOLD level of stimulus?
a)
1 and 5
b)
2
c)
3
d)
6
37.
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
38.
When a neuron is resting, the inside of the axon has a ____________ charge.
a)
positive
b)
negative
39.
In resting potential, neurons have more _________ on the outside of the cell membrane.
a)
K+
b)
NaCl
c)
Na+
d)
Cl-
40.
In resting potential, neurons have more ____________ on the inside of the cell membrane.
a)
NaCl
b)
Na+
c)
K+
d)
Cl-
41.
At what stages do Sodium/Potassium Channels open?
a)
Repolarization/ Repolarization
b)
Depolarization/ Hyperpolarization
c)
Hyperpolarization/ Repolarization
d)
Depolarization/ Repolarization
42.
Which one of the following is involved in maintaining a resting membrane potential?
a)
Na+/K+ ATPase pump moves 3Na+ in for every 2K+ out
b)
Na+/K+ ATPase pump moves 3K+ in for every 2Na+ out
c)
Na+/K+ ATPase pump moves 3Na+ out for every 2K+ in
d)
Na+/K+ ATPase pump moves 3K+ out for every 2Na+ in
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