Question | Answer |
protective covering and first line of defense | integumentary system |
makes new skin cells to replace old | germinativum |
another name for germinativum | stratum basale |
tough, leather fibrous connective tissue; only part vascularized | dermis |
dermis | corium |
superficial fascia; mostly fat (insulate and absorb shock); anchors skin to underlying structures | subcutaneous |
subcutaneous | hypodermis |
barrier to sun's uv rays, invasion of pathogens, holds moisture in and prevents deeper tissue dryness | protection |
responds to pain, pressure, temp (hot/cold), and touch | sensory perception |
blood vessels help retain or lose heat | body temperature regulation |
excess heat escapes through skin | dilate |
heat is retained in body | constrict |
help cool body through evaporation of perspiration | sudoriferous |
stores fat, glucose, water, vitamins, and salts | tissue |
tissue in subcutaneous fascia is source of energy | adipose |
medications absorbed through the skin | transdermal medications |
skin helps body eliminate salt, waste, and excess water and heat with perspiration | excretion |
your skin produces this by using UV rays, and it matures in the liver | Vitamin D |
white portion of nail bed | lunula |
nails are these types of cells | keratinized |
hair is made of this | keratin |
permanent hair loss | alopecia |
hair grows from this hollow tube | follicle |
the part of the hair that projects from the skin | shaft |
embedded into the skin; shape determines whether hair is straight or curly | root |
depends on melanocytes located in the follicle | pigment |
this pigment is brown/black | melanosis |
this pigment is red/yellow | caroterene |
sweat glands | sudoriferous |
purpose of sweat glands | secretion |
substance produced in epidermis by melanocytes | melanin |
absence of color pigments | albino |
abnormal colors of the skin may indicate this | disease |
reddish color; caused by burns or congestion of blood vessels | erythema |
yellow discoloration; caused by bile in blood as a result of liver of gallbladder ds | jaundice |
bluish skin; caused by insufficient oxygen; includes heart, lung, circulatory ds/disorders | cyanosis |
flat spots aka freckles | macules |
firm raised = pimples | papules |
blisters aka fluid filled = chicken pox | vesicles |
pusfilled aka acne | pustules |
dried pus/blood | crust |
itchy, elevated with erregular shapes aka insect bites/hives | wheals |
deep loss of skin surface | ulcer |
inflammation of sebaceous glands | acne |
contagious fungal condition, tx = antifungals | athlete's foot |
basal cell carcinoma | skin cancer |
most dangerous skin cancer, lesions are brown, pink, black, multicolored | melanoma |