The diagram shows the human nervous system - Leaving Cert Biology - Question (b) - 2014
Question (b)
The diagram shows the human nervous system.
(i) Name the parts labelled A and B.
(ii) Nerve impulses are carried around the body by neurons. Name any two types of ... show full transcript
Worked Solution & Example Answer:The diagram shows the human nervous system - Leaving Cert Biology - Question (b) - 2014
Step 1
Name the parts labelled A and B.
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Answer
A is the Brain and B is the Spinal cord (or spine).
Step 2
Nerve impulses are carried around the body by neurons. Name any two types of neuron.
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Answer
The two types of neurons are Sensory neurons and Motor neurons.
Step 3
What are these gaps called?
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These gaps are called synaptic clefts (or synapses).
Step 4
What substances carry nerve impulses across the gaps?
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Neurotransmitters carry nerve impulses across the gaps.
Step 5
Name one disorder of the human nervous system.
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Answer
One disorder of the human nervous system is Parkinson's disease.
Step 6
Give one cause of the disorder.
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One cause of Parkinson's disease is the lack of dopamine.
Step 7
Suggest a means of treating the disorder.
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A means of treating Parkinson's disease is through the use of drugs.
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