How we hear — the human earहम कैसे सुनते हैं — मानव कान

NCERT Fig 10.24 · interactive diagram

Parts and their functions

• Sound waves (ध्वनि तरंगें) — Compressions and rarefactions in air arriving at the ear.
• Outer ear (pinna) (बाह्य कर्ण (कर्ण पल्लव)) — Collects sound and directs it into the ear canal.
• Ear canal (कर्ण नलिका) — Carries sound to the eardrum.
• Eardrum (कर्णपटल) — Thin membrane that vibrates when sound waves hit it.
• Tiny bones (middle ear) (छोटी अस्थियाँ (मध्य कर्ण)) — Amplify the eardrum’s vibrations and pass them inward.
• Cochlea (कॉक्लिया (कर्णावर्त)) — Converts vibrations into electrical signals.
• Nerve to the brain (मस्तिष्क तक तंत्रिका) — Signals reach the brain, which perceives them as sound. Two ears help find the direction.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 10.24. Report a mistake