Integument Flashcards
hypodermis is _____ _____
superficial fascia
dermis is _____ ______
connective tissue
thick skin is on the ____ and ____
soles of feet and palms of hands
epidermis is keratinized, stratified ________ and is _______. Keratinocytes produce _____ and are dead, melanocytes produce _____ and protect against UV radiation, langerhans are _____ and help with the immune system, merkel cells have sensory ____ endings
squamous avascular keratin melatonin macrophages nerve
merkel cells are at the junction between the ______ and epidermis
dermis
the deepest layer of the epidermis is the _________, which is a single cell layer
stratum basale
stratum basale stem cells become _____ and undergo mitosis (also contains melanocytes)
keratinocytes
there are several cell layers in the stratum _______. Keratinocyte have spines, and there are also ________
spinosum
langerhans
flat keratinocytes are found in the _______ _______, and there are 1-5 layers. They have GRANULES
stratum granulosum .
stratum lucidum is only found in ____ skin. Keratinocytes are DEAD
thick
the outermost layer of the epidermis is the ______ _____. Keratinocyte are dead.
stratum corneum
the dermis is VASCULAR and is made of ______ _____
fibrous CT
fibroblasts, macrophages, mast cells, WBC are found in the _____
dermis
there is a semifluid matrix in the dermis, along with _____, _____, and reticular fibers. Also contains sweat/oil glands, part of hair follicle
collagen and elastic
the two layers of the dermis are the _____ and the _____ layer
papillary and reticular
papillary means nipple)