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Hearing
Ear converts sound vibration into nerve signals.
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Hearing
Recommended for Class 10
Hearing
The human ear converts sound waves into electrical signals that the brain interprets as sound.
Outer Ear
The outer ear collects sound and directs it into the ear canal.
The sound reaches the eardrum, causing it to vibrate.
Middle Ear
Three small bones called the ossicles transmit and amplify the vibration.
They are:
malleus; incus; * stapes.
Inner Ear
The stapes transfers vibrations into the fluid-filled cochlea.
Inside the cochlea, sensory hair cells respond to vibration.
These cells convert mechanical vibration into electrical nerve signals.
Auditory Nerve
The auditory nerve carries signals to the brain, where they are interpreted as sound.
Hearing Damage
Very intense sound can damage sensory hair cells.
Repeated exposure to loud sound may therefore cause permanent hearing loss.
Hearing — Advanced
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Practice
PQ
Q1. Name main ear sections.
PQ
Q2. State eardrum role.
PQ
Q3. State ossicles role.
PQ
Q4. State cochlea role.
PQ
Q5. Explain hearing damage from loud sound.
Exam Practice
EQ
Q1. Explain hearing pathway.
EQ
Q2. Explain middle ear.
EQ
Q3. Explain cochlea.
EQ
Q4. Explain auditory nerve.
EQ
Q5. Explain loud-sound damage.
School-standard facts for Matric and Intermediate. Original explanations — not copied from textbooks.