Skin Flashcards
largest and most visible organ of the body
skin
skin makes up what percentage of body weight
16%
surface area of skin
1.5-2m (squared)
what does skin protect
underlying tissues and organ
what does skin protect underlying tissues and organs from
impact, abrasion, fluid loss and chemical attack
what does skin excrete and how
salts, water and organic waste via integumentary glands
how does skin maintain normal body temperature
insulation or evaporation
melanin
protects underlying tissue form UV radiation
keratin
protects against abrasion and serves as water repellent
skin synthesises what steriod
vitamin D3
where are lipids stored n
adipocytes in dermis and adipose tissue in subcantenous layer
information detected by skin and relayed to nervous system
touch, pressure pain and temperature
high pigmentation
protects from UV radiation
low pigmentation
vitamin D synthesis
types of tissue in skin
epethelial, connective, muscle and nervous
three primary layers of skin (superficial to deep)
epidermis, dermis and hypodermis
three factors of epidermis layer
avascular, kertainocyes, stratified layer
two factors of dermis layer
vascular and protien fibres
factor of hypodermis layer
adipose tissue
cutaneous skin
epidermis and dermis
subcataneous skin
hypodermis
layer of skin only found in thick skin (hand and feet soles)
stratum lucidum
stratum layers of epidermis (superficial to deep)
stratum corneum
