BS5.3 Hearing

BS 3 Hearing (and sight)
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Slide 1: Diapositive
BiologieMiddelbare schoolvwoLeerjaar 1

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BS 3 Hearing (and sight)

Slide 1 - Diapositive

In Dutch

Slide 2 - Diapositive

External/outer ear

Pinna
Ear canal
Eardrum (sort of border)

Slide 3 - Diapositive

Slide 4 - Diapositive

So? how does hearing 'technically' work?

Stimulus?

Slide 5 - Diapositive

Slide 6 - Vidéo

Collecting info

Slide 7 - Diapositive

The way sound travels
Pinna - Ear canal - Eardrum - Hammer - Anvil - Stirrup - Cochlea (creates nerve impulse) - Auditory nerve --> cerebrum 

Slide 8 - Diapositive

When climbing a mountain/taking flight

Air pressure on the outside is very low, on the inside relatively high. You'll have to swallow some water in order to 'pop' your ears.

Slide 9 - Diapositive

Air pressure pushes on eardrum

Slide 10 - Diapositive

Eustachian tube connects to your nasal cavity/throat.


Slide 11 - Diapositive

Do assignments BS 5.3
1, 2 and 7

Slide 12 - Diapositive