Edisi Nota : Skin

Structure of human skin:

a)     The skin divided into 3 layers; epidermis, dermis, fat layer.

b)     Receptors are cell in our body that detected stimuli.

c)     Our body have different types of receptors. These are:

·       pain receptor

·       receptor

·       heat receptor

·       cold receptor

·       pressure receptor

d)     The pain receptor is in the epidermis.

e)     The touch, heat and cold receptors are in the dermis.

f)      The pressure receptors are in the fat layer.

g)     Each type of receptor can detect only one particular stimulus.

h)     The part or our body contain receptor are called sensory organs

i)      These receptor have nerves attached to them

The degree of sensitivity of the skin depends on the:

1)     Thickness of epidermis

·       The thinner the epidermis, the more sensitive the skin is to the stimulus

2)     Number of receptors present

·       The more receptors found on the skin the more sensitive is that part of the skin.