Tom jumped from an aeroplane at 10000m height with the aid of parachute. Unluckily, he has landed on a lake and fall straightly into water. He finds that his ears cannot hear anything.
a.Suggest two possible situations of his ear.
b.Which structure in ear helps to keep balance?
c.Would the structure in (b) be easily damaged by impulse of air? Why?
d.Is it possible to recover his hearing if lots of sensory cells have been died in this accident? Explain your answer.
Form 5 Bio Help!!!
2012-11-20 3:40 am
回答 (2)
2012-11-20 7:57 am
✔ 最佳答案
a. the ear drum is broken OR the auditory nerve is brokenb. semicircular canals （呢個係dse bio入面out左syl 定係你可能take緊個elective？xd）
c. no because it is hollow.
d. no because sensory cells cannot grow again once they were dead.
參考: myself
2012-11-20 6:01 pm
a.Suggest two possible situations of his ear.
→鼓膜或卵圓窗破裂。
b.Which structure in ear helps to keep balance?
→半規管和前庭都有。
c.Would the structure in (b) be easily damaged by impulse of air?
→不容易。
Why?
→因為有耳咽管可平衡中耳壓力。
2012-11-20 10:04:03 補充：
d.Is it possible to recover his hearing if lots of sensory cells have been died in this accident? Explain your answer.
→不容易。因為毛細胞難以再生。
→鼓膜或卵圓窗破裂。
b.Which structure in ear helps to keep balance?
→半規管和前庭都有。
c.Would the structure in (b) be easily damaged by impulse of air?
→不容易。
Why?
→因為有耳咽管可平衡中耳壓力。
2012-11-20 10:04:03 補充：
d.Is it possible to recover his hearing if lots of sensory cells have been died in this accident? Explain your answer.
→不容易。因為毛細胞難以再生。
收錄日期: 2021-04-24 10:45:40
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