what are the 6 principle functions of the skin?
protection heat regulation secretion and excretion sensation absorption respiration
outermost layer of the skin
deepest layer of the skin that extends to form the subcutaneous tissue
is a connective tissue network of cells through which are distributed nerves, blood, and lymph vessels, and sweat and oil glands
layers of the epidermis (5)
stratum corneum - outermost stratum lucidum stratum granulosum - granular like stratum spinosum / mucosum - melanin stratum germinativum - deepest layer. only cells in the skin to undergo mitosis
layers of the dermis (3)
papillary layer - contains the papillae, tactile corpuscles
reticular layer - contains fat cells, blood and lymph vessels, sweat and oil glands, hair follicles, and nerve endings
subcutaneous tissue -
what is the largest organ of the body?
how much of the body’s blood supply is distributed to the skin?
what is healthy skin like?
slightly moist, soft, flexible, and slightly acidic
the skin contains what 2 types of duct glands (exocrine glands) that extract materials from the blood to form new substances?
sudoriferous - sweat
sebaceous - oil
basal cell carcinoma
type of skin cancer
least malignant and most common
squamous cell carcinoma
more severe than basal cell carcinoma
the most serious form of skin cancer
recognize the ABCDE
Asymmetry Borders Color Diameter Elevation