The diagram above shows the internal structure of the human ear - Leaving Cert Biology - Question 15 - 2011
Question 15
The diagram above shows the internal structure of the human ear.
1. Name the structures labelled A, B, C.
2. Give the functions of parts D and E.
3. Which letters d... show full transcript
Worked Solution & Example Answer:The diagram above shows the internal structure of the human ear - Leaving Cert Biology - Question 15 - 2011
Step 1
1. Name the structures labelled A, B, C.
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Answer
The structures labelled are:
A = cochlea
B = eardrum
C = auditory nerve
Step 2
2. Give the functions of parts D and E.
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Answer
The functions of the parts are:
D = posture or balance
E = pressure equalisation
Step 3
3. Which letters denote the parts of the ear in which nerve impulses are generated?
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Answer
The part of the ear in which nerve impulses are generated is denoted by A.
Step 4
4. In what part of the eye are nerve impulses generated?
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Answer
Nerve impulses in the eye are generated in the retina or a named part of the retina.
Step 5
5. Suggest one way by which the ear may be protected.
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Answer
One way to protect the ear is by using ear wax, wearing ear protection, or avoiding noisy environments.
Step 6
6. Explain how a corrective measure for a named defect of hearing or vision works.
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Answer
For a named defect like hearing loss due to damage to the eardrum, a corrective measure like a hearing aid amplifies sound waves, allowing the individual to hear more effectively.
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