Lec 5 Skin and its Appendages Flashcards
what 2 layers is skin composed of
epidermis and dermis
most superficial layer of skin?
epidermis
what is the epidermis composed of?
stratified squamous keratnized epithelium
what is the dermis composed of?
dense ct, vascular
deep to the skin is the..?
hypodermis
what is the hypodermis composed of
loose ct (areolar) and adipose tissue
what anchors skin to underlying muscle and acts as a shock absorber
hypodermis
deepest epidermal layer is the?
stratum germinativum
special characteristics of the stratum germinativum
single layer of cells
undergoes constant mitosis to regenerate the skin. pushes cells to the top
special characteristics of straum spinosum
layers of squamous like cells
keratin synthesis begins
special characteristics of statum granulosum
dark granules, cells begin to die
special characteristics of stratum lucidum
clear layer, cells appear empty, only found in thick skin
most superficial epidermal layer?
strateum corneum
which layer contains dead scale like keratinized cells?
strateum corneum
function of the dermis
provides as supporting base to epidermis
dense network of blood cells for diffusion of nutrients to epidermis
