The Integumentary System
The Integumentary System
The Integumentary System
The Integumentary
system
Integumentary system
Covers your body and helps you
maintain homeostasis.
It Made up of:
- Skin
- Nails
- Hair
Functions of skin
❖ Skin protects you by keeping water in
your body and foreign particles out of
your body.
Melanin absorbs ultraviolet light from the sun, so it reduces damage that
can lead to skin cancer.
Structure of the skin
Blood vessels
Nerve fibers
Hair follicles
Muscle fibers
Oil glands
Sweat glands
➢ Is the outermost layer of the skin that you ➢ The thicker layer that lies beneath the
see when you look at your skin. epidermis.
Like skin, hair and nails re made of living and dead cells.
Hair
Skin may be affected by hormones that cause oil glands to make too
much oil, and this oil combines with dead skin cells and bacteria to clog
hair follicle and cause acne
How skin Heals
Student
book
1- The integumentary system: is the organ
system that forms a protective covering
over the body.
2- C
5-
1-A blood clot forms over a cut to stop
bleeding and to keep bacteria out of the
cut.
2-Bacteria-fighting cells come to the area
to kill bacteria.
3- Damaged skin cells are replaced
through cell division.
Q5)
1- skin, hair, nails
2- water, foreign particles
3- nerve endings
4- sweat glands
5- wastes
6- melanin
7- epidermis
8- dermis
9- epithelial
10- keratin
11- collagen
12- nail root
cancer
acne
blood clot
bacteria- fighting cells
1- water
skin 2- nerve endings
Integumentary system
3- melanin
4- ultraviolet light
5- sweat glands
6- wastes
Sweat gland
Hair follicles
Release Sweat