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HHB 3.4 Part 1 Neurons, Neurotransmitters & Synapses

Total questions: 31

Worksheet time: 29mins

Name
Class
Date
1.

In the diagram of the motor neuron, which letter represents the myelin sheath?

a)
A
b)

B

c)

C

d)

D

2.

In the diagram of the motor neuron, which letter represents dendrites?

a)
A
b)

B

c)

C

d)

D

3.

In the diagram of the motor neuron, which letter represents the axon?

a)
A
b)

B

c)

C

d)

D

4.

In the diagram of the motor neuron, which letter represents the cell body?

a)
A
b)

B

c)

C

d)

D

5.

In the diagram of the motor neuron, which letter shows the structure produced by glial cells?

a)
A
b)

B

c)

C

d)

D

6.

In a neuron which structures receive electrical impulses from other neurons?

a)

axon

b)

cell body

c)

dendrites

d)

myelin sheath

7.

In a neural pathway, what term is used to describe muscle and glands?

a)
receptor
b)
effectors
c)
stimulus
d)

neurotransmitters

8.
Which of the options correctly shows the passage of an impulse through a neuron?
a)
axon > dendrite > cell body
b)
dendrite > cell body > axon
c)
cell body > axon > dendrite
d)
dendrite > axon > cell body
9.

Which structure insulates the axon of a neuron?

a)

dendrite

b)

myelin sheath

c)

neurotransmitter

d)

glial cell

10.

In a neuron, which structure increases the speed of impulse conduction?

a)

axon

b)

myelin sheath

c)

dendrite

d)

glial cell

11.
Which part of a neuron could also be labelled as a post-synaptic neuron?
a)
axon
b)
dendrite
c)
cell body
d)
myelin sheath
12.

Which structure produces the myelin sheath and supports neurons?

a)

Glial cells

b)

Vesicles

c)

Synaptic cleft

d)

Dendrites

13.

In a neuron which structures contain the neurotransmitters?

a)
ribosomes
b)
mitochondria
c)
vesicles
d)
nucleus
14.
Name given to the gap between neurons
a)
vesicle
b)
receptor
c)
neurotransmitter
d)
synaptic cleft
15.

When an electrical impulse arrives, which structures are stimulated to move to and fuse with the pre-synaptic cell membrane?

a)
vesicles
b)
mitochondria
c)
lysosomes
d)

ribosomes

16.

Process by which neurotransmitters cross the synaptic cleft

a)
osmosis
b)
active transport
c)
diffusion
d)
summation
17.

Which structure is labelled A on the diagram?

a)
vesicle
b)
synaptic cleft
c)

neurotransmitters

d)
receptor
18.

Which structure is labelled B on the diagram?

a)
vesicle
b)
synaptic cleft
c)
neurotransmitter
d)
receptor
19.

Which structure is labelled D on the diagram?

a)
vesicle
b)
synaptic cleft
c)
neurotransmitter
d)
receptor
20.

Which structure is labelled F on the diagram?

a)
vesicle
b)
synaptic cleft
c)
neurotransmitter
d)
receptor
21.

Structure F would be found on the...

a)
pre-synaptic neuron
b)
post-synaptic neuron
22.
An impulse arriving at the pre-synaptic neuron will cause vesicles to fuse with which cell structure?
a)
cell membrane of the axon
b)
cell membrane of the dendrite
23.

Which substances diffuse across the synaptic cleft and bind to receptors on the membrane of the postsynaptic neuron?

a)

neurotransmitters

b)

vesicles

c)

enzymes

d)

antibodies

24.

What term is used to describe the formation of myelin sheath?

a)

myelination

b)

summation

c)

desensitisation

d)

reuptake

25.

Neuron found before the synaptic cleft

a)
presynaptic neuron
b)
postsynaptic neuron
26.

Neuron found after the synaptic cleft

a)
presynaptic neuron
b)
postsynaptic neuron
27.
The term for the minimum number of neurotransmitters which must bind to receptors to cause an impulse
a)
threshold
b)
summation
c)
excitatory
d)
inhibitory
28.
This type of receptor increases the likelihood of another impulse
a)
excitatory
b)
inhibitory
29.

Neurotransmitters are removed from the synaptic cleft by which processes?

a)
summation and enzyme degradation
b)
reuptake and enzyme synthesis
c)
reuptake and enzyme degradation
d)
enzyme inhibition and reuptake
30.
The term for the combining of a series of weak stimuli which triggers an impulse
a)
threshold
b)
summation
c)
excitatory
d)
inhibitory
31.
Summation typically occurs in this type of neural pathway
a)
converging
b)
diverging
c)
reverberating