Question

22. Explain how the human ear works,​

Answer 1

Answer:

The sound waves cause the eardrum to vibrate, which sets the three tiny bones in the middle ear into motion. The motion of the bones causes the fluid in the inner ear or cochlea to move. The movement of the inner ear fluid causes the hair cells in the cochlea to bend.

Answer 2

ᴀɴsᴡᴇʀ࿐

ᴛʜᴇ ᴇᴀʀ ᴄᴀɴ ʙᴇ ʙʀᴏᴀᴅʟʏ ᴄʟᴀssɪғɪᴇᴅ ɪɴᴛᴏ ᴛʜʀᴇᴇ ᴘᴀʀᴛs

ᴏᴜᴛᴇʀ ᴇᴀʀ:- ᴛʜᴇ ᴇᴀʀ ᴅʀᴜᴍ ᴠɪʙʀᴀᴛᴇᴅ ᴡʜᴇɴ ᴛʜᴇ ᴇᴀʀ ᴅʀᴜᴍ sᴏᴜɴᴅ ᴡᴀᴠᴇs sᴛʀɪᴋᴇ ɪᴛ ᴀɴᴅ ᴛʀᴀɴsᴍɪᴛs ᴛʜᴇ sᴏᴜɴᴅ ᴛᴏ ᴛʜᴇ ᴍɪᴅᴅʟᴇ ᴇᴀʀ.

ᴍɪᴅᴅʟᴇ ᴇᴀʀ:- ᴛʜᴇ ᴛʜᴇ ᴛʜʀᴇᴇ ʙᴏɴᴇs ᴀʀᴇ ᴘʟᴀᴄᴇᴅ ɪɴ sᴜᴄʜ ᴀ ᴡᴀʏ ᴛʜᴀᴛ ᴛʜᴇʏ ᴍᴏᴠᴇ ᴡʜᴇɴ ᴛʜᴇ ᴇᴀʀ ᴅʀᴜᴍ ᴠɪʙʀᴀᴛᴇs ᴀɴᴅ ᴛʜᴇ ᴛʜᴇʀᴇғᴏʀᴇ , ᴛʀᴀɴsᴍɪᴛs ᴛʜᴇ ᴠɪʙʀᴀᴛɪᴏɴ ᴛᴏ ᴛʜᴇ ɪɴɴᴇʀ ᴇᴀʀ.

ɪɴɴᴇʀ ᴇᴀʀ:- ᴛʜᴇ ʜᴀɪʀ ᴏғ ɪɴɴᴇʀ ʜᴀɪʀ ᴛʀᴀɴsғᴏʀᴍ ᴛʜᴇ ᴠɪʙʀᴀᴛɪᴏɴs ɪɴᴛᴏ ᴇʟᴇᴄᴛʀɪᴄᴀʟ ɪᴍᴘᴜʟsᴇs , ᴡʜɪᴄʜ ᴀʀᴇ ᴛʜᴇɴ ᴛʀᴀɴsғᴇʀʀᴇᴅ ᴛᴏ ᴛʜᴇ ʙʀᴀɪɴ ᴠɪᴀ ᴛʜᴇ ᴀᴜᴅɪᴛᴏʀʏ ɴᴇʀᴠᴇ.