chapter 5 Flashcards
Integumentary system functions
Protection, waterproofing skin, mini excretory system, vitamin D, sensory receptors
Layers of skin
Epidermis
Dermis
Subcutaneous
Papillary layer
Produce fingerprints
Sebaceous glands
Produce an oily product. Usually coupled with a hair follicle.
Sweat glands
produce sweat. Regulates body heat
Cyanosis
Bluish color that occurs during heart failure and severe breathing disorders
Erythema
Redness. Indicates fever, inflammation, embarrassment, allergy
Pallor
Blanching, pale skin, emotional stress, anemia, low blood pressure
Jaundice
Yellow cast, sign of liver disorder or too much bile absorbed by the blood
Hematomas
Black and blue marks, bruises, sites were blood has escaped from a blood vessel and has clouded in the tissue spaces
Sebum
Oil, keeps the skin soft and moist
Acne
Infection of the sebaceous gland
eccrine glands
Produce sweat
Sweat
Water + salts + urea + vitamin C
Apocrine glands
Located in axillary and genital region of body, contain fatty acids + proteins + sweat, begins functioning at puberty
Hair
Made up of dead protein
Melanin
Produces hair color
Basal cell carcinoma
The most common skin cancer, the least malignant, the cells bulge up into the dermis layer, slowly growing
Squamous cell carcinoma
Grows rapidly, will attach itself to lymph nodes it’s not removed
Malignant melanoma
Cancer of melanocytes, attaches itself to lymph nodes and blood vessels grows rapidly
Melanoma A
Asymmetry
Melanoma B
Border irregularity