The integumentary system is made up of , , and .
The three layers of skin are the , the , and the .
Which layer is the outer layer of skin?
dermis
epidermis
subcutanoeus
hypodermis
What are the functions of the epidermis?
Protection form the outside environment
Waterproofs and strengthens (cells that make keratin)
gives skin its color (contains melanin)
provides immunity
allows us to feel the sensation of touch
strength support and flexibility
conserve heat
Which cells waterproof and strengthen?
keratin
melanin
lipocyte
Cells that contain melanin give skin its color?
Cells in the dermis allow us to feel touch and provides immunity against germs and bacteria?
Which layer is known as the "true skin" ?
subcutaneous
The dermis contains cells that give skin , , and .
As a person , the cells lose their and , causing the skin to and .
Small blood vessels in the dermis give , and remove
Which layer is the fatty layer?
subcutaneous and hypodermis
The subcutaneous layer contains the cells, or tissue and insulates skin to help .
The skin includes and .
Nails originate in the epidermis.
Hair comes form follicles that start in the epidermis.
The secrete sweat
Another name for sweat glands is .
The glands are the oil glands that secrete into hair shafts.
Which of the items below is a function of oil?
oil in the skin keeps it from drying out
oil causes acnea
softens hair
causes dandruff
kill bacteria in the pores
Oil glands are everywhere except palms of the hands and the soles of the feet
The functions of the skin include:
Forms a protective covering
Produces hair
to contain blood
Prevents bacteria/other items from entering the body
Protects the body from the sun and water loss
Regulates sweat
Regulates body temperature
The is the bodies largest organ.
The average human has over pounds of skin covering square feet.
Label this skin diagram