Gr3_ Science_ Q2_Ears and its function

The auditory system is comprised of the ears and the brain. This enables you to accurately identify sound

• True

• False

The ears has how many parts?

• 5

• 4

• 3

Answer explanation

What is meaning of cochlea in latin?

• coffee

• snail's shell

• crab

• worm

Answer explanation

It looks like a snail's shell.

The outer ear is composed these 2: ______ and _________.

• ear drum

• Pinna

• ear canal

• cochlea

The ______ vibrates as the sound hits it.

• ear drum

• Pinna

• ear canal

• cochlea

When the eardrum vibrates, the __________ in the ear also move.

• ear drum

• 3 tiny bones (hammer, anvil, stirrup)

• ear canal

• cochlea

Answer explanation

The vibration from the 3 bones then enters the ________ that sends signals to the brain.

• ear drum

• 3 tiny bones (hammer, anvil, stirrup)

• ear canal

• cochlea

Answer explanation

Cochlea consists of many hair.

And when the fluid in cochlea moves, it moves these tiny hairs, creating nerve signals that get sent through the auditory nerve into the brain.

The brain process these signals as sound as sound, as so you hear.

What is the correct flow of how the sound travels in your ears.

• 1) Vibrations enter the cochlea that sends signals to the auditory nerves.

  2) Pinna catches the sounds from the source.

  3) Eardrum vibrates as sound enters, causing hammer, anvil and stirrup to move.

  4) Sound passes thru the ear canal and enters the middle ear.

  5) The auditory nerves send signals to the brain which interprets and identifies the sound.

• 1) Pinna catches the sounds from the source.

  2) Sound passes thru the ear canal and enters the middle ear.

  3) Eardrum vibrates as sound enters, causing hammer, anvil and stirrup to move.

  4) Vibrations enter the cochlea that sends signals to the auditory nerves.

  5) The auditory nerves send signals to the brain which interprets and identifies the sound.

Common Ear Problem 1:

A person who suffers from ___________ cannot hear very well. Hearing loss is different from deafness.

Deafness is the total loss of hearing due to impaired auditory nerves. ___________ and deafness maybe caused by exposure to too much noise and loud music, buildup and hardening of ear wax in the canal, aging, infection, or injury. Somtimes, people are born with hearing problems.

• ear infection

• swimmer's ear

• hearing loss

Common Ear Problem 2:

This problem is common among children. This happens where bacteria get inside the middle ear. This ear problem is characterized by swelling, redness and presence of pus. Consult an ear doctor when you suffer from an ear infection.

• ear infection

• swimmer's ear

• hearing loss