Integumentary System “The PROTECTOR!!!”. Functions of the Integumentary System: Protects...
-
Upload
amanda-whitehead -
Category
Documents
-
view
226 -
download
0
Transcript of Integumentary System “The PROTECTOR!!!”. Functions of the Integumentary System: Protects...
Integumentary System
“The PROTECTOR!!!”
Functions of the Integumentary System:
Protects internal organs/systems Protects against infectious organisms Prevents loss of body fluids Regulates body temperature Removes wastes – perspiration Generates Vitamin D – Sunlight Protects against sunburns Stores fat for fuel and insulation Sensory organ w/ receptors for touch,
pressure, pain, heat, and cold
Parts of the Integumentary System
1.SKIN2.HAIR3.NAILS
***All form from dead cells which the body sheds as new cells push up from underneath.
skin
Click icon to add picture
1. Epidermis: Outside Layer Produces Melanin--- Gives skin
its color and protects us from UV rays.
Made up of keratin (protein)
2. Dermis: Contains nerve endings,
blood vessels, hair follicles, sweat glands, oil glands.
3. Subcutaneous: Made of fat and keeps us
warm. Holds skin to tissues Hair starts here.
Nails
Click icon to add picture
Protects fingers and toes Formed from
keratin(protein) and are tough and plate-like
No nerve endings Grow 1/10 of an inch per
month
HairClick icon to add picture
Each hair grows out of a follicle
Hairs are large columns of dead cells which are filled with protein called keratin
Hair color is determined by amount of melanin in skin
100,000 follicles on your head