The diagram shows a neuron - Leaving Cert Biology - Question d - 2021
Question d
The diagram shows a neuron.
(i) Name the parts A, B, C, D.
(ii) What type of neuron is shown in the diagram?
(iii) Name the gap or region between two neurons.
(i... show full transcript
Worked Solution & Example Answer:The diagram shows a neuron - Leaving Cert Biology - Question d - 2021
Step 1
Name the parts A, B, C, D.
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Answer
A: Cell body (not nucleus)
B: Dendrites
C: Schwann cell (allow myelin)
D: Axon (allow node of Ranvier)
Step 2
What type of neuron is shown in the diagram?
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Answer
Motor or interneuron
Step 3
Name the gap or region between two neurons.
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Answer
Synapse
Step 4
What helps the nerve impulse travel across the gap named at part (iii) above?
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Answer
Neurotransmitters
Step 5
Name one disorder of the nervous system.
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Answer
Parkinson's disease or paralysis
Step 6
Give a cause and a possible treatment of the disorder named at part (v) above.
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Answer
Cause: Lack of dopamine (Parkinson's) or injury (paralysis)
Possible treatment: Physiotherapy or medication (for both Parkinson's and paralysis)
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