Skin unit

What is the skin?

●The skin is the outermost

layer of the body covering every

square inch of the body.This is

called the integumentary system.

(integument means covering).

●The skin has different

structures within it

including hair, nails, and

glans.

What are the functions of the skin?

The functions of the skin are…

●The skin acts as a “protective membrane” over the body,
acting as a shield for deeper tissues of the body against
pathogens, extreme loss of water, heat, and salts.

●The skin also has two type of glands. Sebaceous glands
and sweat glands. The sebaceous glands produce an oily
secretion called sebum, and the sweat glands produce
sweat.

●And the third is the nerve fibers in your skin that picks
up on pain, temperature, pressure, and touch.

Layers of the skin.

● Outermost layer is the epidermis.

● Middle layer is The dermis.

● The innermost layer is the

subcutaneous layer.

Here is a diagram to
help you understand.

Some Skin

condition/diseases

Albinism

A condition of

skin deficient in

pigment(melanin).

Albin/o = white

Mycosis
A disease caused by a

fungus.Myc/o = fungus

Alopecia

An absence of hair

in areas where it

normally grows.

Word parts related to skin.

Hidr/o = sweat

onych/o = nail

adip/o = fat

pil/o = hair

Cutane = skin

seb/o = sebum

derm/o = skin trich = hair