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15 Cards in this Set

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what is the integementary system include?
Hair,nails, sweat and oil glands and skin
What are the 2 distinct regions of the skin?
epidermis, the outermost layer
dermis, underlying layer that makes up bulk of skin
What is the epidermis made of?
Stratified squamous epithelium
it doesn't have any nerves or blood vessels
What are cells of the epidermis? (4)
KERATINOCYTES
MELANOCYTES
MERKEL CELLS
LANGERHAN'S CELLS
What is the function of the Keratinocytes?
Outermost layer of cells in epidermis and produce keritin
what is the function of the keritin?
it is the protein that protects the epidermis
How often do we get a totally new epidermis because of the scale-like cells rubbing off every day?
We get a totally new epidermis every 25 - 45 days
what is a callus?
A thickening of the epidermis because of friction (hands and feet)
What are Melanocytes?
Cells that make up the skin pigment. In the deepest layer of the epidermis
Protection from UV rays
What are the disadvantages to getting a sun tan?
It is sun damage because of the melenain released to protect
Langerhan's cells?
They arise from the bone marrow and migrate to the epidermis. star-shaped and are phagocytes. They also stimulate our immune system
Merkel Cells?
Last layer of cells in the epidermis. Have sensory nerve endings and are used in touch.
Layers in the epidermis in thick skin, Palms,fingertips, and soles of feet
STRATUM BASALE,
STRATUM SPINOSUM
STRATUM GRANULOSUM
STRATUM LUCIDUM
STRATUM CORNEUM
What is the function of the Stratum Basale layer?
It is the deepest layer in the epidermis and it's where cell division takes place.
What is the function of the Stratum Spinosum?
It is the 2nd deepest layer in epidermis
called "prickly cells" because of shape