null
US
Sign In
Sign Up for Free
Sign Up
We have detected that Javascript is not enabled in your browser. The dynamic nature of our site means that Javascript must be enabled to function properly. Please read our
terms and conditions
for more information.
Next up
Copy and Edit
You need to log in to complete this action!
Register for Free
8356453
The Ear
Description
Leaving Certificate Biology Mind Map on The Ear, created by Niamh . on 30/03/2017.
No tags specified
the ear
ear
biology
senses
biology
leaving certificate
Mind Map by
Niamh .
, updated more than 1 year ago
More
Less
Created by
Niamh .
about 7 years ago
13
0
0
Resource summary
The Ear
Outer ear
Pinna - visible part of the ear, funnels sound intot he ear canal, made of cartilage
Ear canal - leads to the ear drum
Ear drum - membrane of skin, vibrates when sound hits it
Middle ear
Ossicles (Hammer - mallus, Anvil - incus, Stirrup - stapes
Eustachian tube - keeps pressure equal on both sides of ear drum
Inner ear
Cochlea - fluid filled, coiled, helps with hearing
Semi-circular canals - helps with balance
We hear by...
The pinna channeling the sound to the eardrum
The eardrum vibrates, which then causes the ossicles to vibrate, which amplify the sound by 20 times
The stirrup pushes on the oval window against the cochlea, which moves the lymph inside
Special hairs, which are nerve endings, sense the movement and send messages to the brain along the auditory nerve
The brain interprets these messages as sound
We hear.
We have 3 semi-circular canals so we can have balance in 3 planes
Deafness can be caused by long exposure to high levels of noise, explosions, born with a problem with the cochlea, drugs or ear infections
Show full summary
Hide full summary
Want to create your own
Mind Maps
for
free
with GoConqr?
Learn more
.
Similar
GCSE Biology B2 (OCR)
Usman Rauf
Biology Unit 2 - DNA, meiosis, mitosis, cell cycle
DauntlessAlpha
Cells And Cell Techniques - Flashcards (AQA AS-Level Biology)
Henry Kitchen
Cell Structure
megan.radcliffe16
Exchange surfaces and breathing
megan.radcliffe16
Biology B1.1 - Genes
raffia.khalid99
IB Biology Topic 4 Genetics (SL)
R S
Biology Unit 1a - GCSE - AQA
RosettaStoneDecoded
Plant and animal cells
Tyra Peters
Plant Structure and Photosynthesis
mckenziedev
AS Biology Unit 1
lilli.atkin
Browse Library