510-5 : Oral Cavity Epithelia Flashcards
(18 cards)
keratinzed cells are ___alive/dead____
dead
the epithelium of the skin is ___ with neurons but _____.
innervated, avascular
dermis of epidermis is the connective tissue part and is ____ and ____.
innervated, vascular
for this class, the ___ AND ___ make up the skin and is supported by the ____.
epidermis, dermis, hypodermis
the hypodermis that supports the skin (epidermis and dermis) is also known as the ____ fascia.
superficial fascia
in skin, the underlying ___ is a complex connective tissue witha dipose tissue.
dermis
thick skin is ___ -___ microns thick while thin skin is __-___ microns thick.
400-600, 75-150
___ skin has no hair and only found on palms and soles.
THICK
___ skin has hair and covers most of the body.
THIN
the most abundant cells of the epithelium are ___.
keratinocytes
pigment cells in the basal layer are called _____.
melanocytes
the epidermis is a ___keratinzed/nonkeratinzed___ strat squamous epith.
keratinized
thickness of epidermis is determined by the # of layers of ___, the most abundant cells of the epithelium.
keratinocytes
T/F - melanocytes can be deadly if they stop recognizing the thin microsopic layer of collagen called the basement membrane and gaining acces s into the blood.
T - this is called melanoma - a neoplasm (tumor) made of melanocytes.
____ cells are also called dendritic cells and are bone marrow-derived cells int he epidermis that can migrate into the dermis to present ag’s to T lymphocytes - play a role in delayted-type hypersntvty.
Langerhans cells
___ cells are alos called tactile cells and are modified epidermal cells that contact sensory neruos for forma senstive mechanoreceptor.
Merkel’s cells
___ cells are right next to nerve endings and are important for mechanical sense of touch on skin.
merkel’s
the core of skeletal (STRIATED) muscle in the lips is called the ___ ___.
orbicularis oris
