The Ear and The Skin

Question 0

how do ears help you here

Answer 0

sound hits eardrum-vibration causes bones attached to the eardrum to vribrate,amplify sound-vibration transmits to cochela-vibration causes waves to the cochela which bends the hair-stimulates nerves in hairs-nerves send signals to brain.

Question 1

what is the function of ears

Answer 1

hearing and balance

Question 2

how do ears help with balance

Answer 2

• sensed by fluid filled semicircular canals,lined with mechanoreceptors
• arranged in different angles lets brain know head movement and different things

Question 3

what is the function of skin

Answer 3

detects difference in external environment with free nerves (e.g heat,pain,pressure,movement of hairs,stretching of skin or brain.)

Question 4

what is adaptation

Answer 4

the receptors or brain ignore prolong stimulation(e.g strong smells)

Question 5

what is the cochlea

Answer 5

the fluid filled apparatus

Question 6

what is the mechanoreceptors

Answer 6

hair like cells in the cochlea

Question 7

What are the skin receptors and what are their functions

Answer 7

Free nerve ending: pain and temperate 
Meeker disc: light touch
Krause end blubs: touch
Meissner's corpuscles: touch
Pacinian corpuscles: pressure
Riffini endings: pressure stretch

Question 8

Types of receptors and function

Answer 8

Mechanoreceptor:touch
Thermoreceptor: temperature
Stretch receptor: stretch
Pain receptor: pain