Ear👂🏼

Question 1

Eardrum

Answer 1

Thin layer of tissue that receives sound vibrations and transmits them to middle ear cavity

Question 2

Inner ear (stirrup, anvil and hammer)

Answer 2

Small bones that amplify the sound waves and transmit vibrations to cochlea

Question 3

Cochlea

Answer 3

Contains jelly like fluid in coiled tube that vibrations pass through and are converted to neural messages and passed on to brain and auditory nerve

Question 4

Organ of corti

Answer 4

• located in cochlea

- lines with rows of hair cells that convert vibrations into nerve impulses

Question 5

Eustachian tube

Answer 5

• connects middle of ear to throat

- ensures reassure in middle ear is equal to pressure outside ear

Question 6

Round window

Answer 6

• drum-like membrane

- vibrations from oval window pass through it to the cochlea

Question 7

Auditory nerve

Answer 7

Bundle of nerve fibres that carry hearing information from cochlea to brain

Question 8

Semi-circular canals and ampullae

Answer 8

• tiny fluid filled tubes in inner ear to help with balance
• nothing to do with hearing
• lined with cilia as they connect to brain and act as a motion sensor to keep balance