Integumentary System Flashcards
name the seven functions of the skin:
protective coating, temporary storage of fat glucose salt and water, regulates body temperature, screens out uv rays, makes vitamin d, absorbs drugs, and provides sensory functions
what are the three layers of skin?
the epidermis, dermis, and the subcutaneous layer
what is the outermost layer of the epidermis called?
the stratum corneum
how many layers does the epidermis have?
5 layers
what does the stratum corneum defend the body against?
bactera/infection
what is the purpose of papillae?
to help with grip
melanocytes contain a pigment called what?
melanin
what does melanin do?
it gives color to the skin
which layer of skin contains connective tissue, blood vessels, nerve endings, muscles, hair follicles, and oil and sweat glands?
the dermis/the middle layer of skin
what layer is below the dermis?
the subcutaneous layer
what is the subcutaneous layer made of?
loose connective tissue
what is the part of the hair that is implanted in the skin?
the root
what is the hollow tube the hair root is implanted in called?
the follicle
what is the visible part of the hair called?
the shaft
what is the outer layer of hair called?
the cortex
what is the inner layer of hair called?
the medulla
what condition occurs when normal hair is replaced by very short, transparent hair?
alopecia