Hearing Flashcards
1
Q
Eardrum
A
Thin layer that intercepts sound waves
2
Q
Outer ear function
A
Directs hearing in, first layer of defence
3
Q
Middle ear
A
Also known as the tympanic cavity, its an air-filled membrane, regulates air pressure within the ear to equal the exterior pressure
4
Q
Pinna
A
Tip of ear, directs sounds into ear
5
Q
External auditory canal
A
Wax catches dust, hair keeps bugs out, directs sound in, wax fights diseases, wax waterproofs ear, wax keeps skin from drying out, hair for feeling
