Same chapter3 marksDifficulty: Medium
Name the parts of the human brain and state one function of each.
Neural Control and Coordination
3 marksDifficulty: Medium
Describe the structure of the human ear and the pathway of sound.
Original Khojo Papers practice question — not from a past board paper.
Answer
The outer ear collects sound at the pinna and channels it along the auditory canal to the ear drum. The middle ear passes the vibration on through the malleus, incus and stapes to the oval window, amplifying it. The inner ear contains the cochlea, in which the organ of Corti converts the vibration into nerve impulses, and the semicircular canals, which govern balance.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The Eustachian tube equalises the pressure on the two sides of the ear drum.
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