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| Superficial to dermis, keratimized stratified squamous epithelim, no blood vessels |
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Definition
1) Stratum basale
2) Stratum Spinosum
3)Stratum Granulosum
4)Stratum Lucidum
5)Stratum Corneum |
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Term
| Four Cells of Stratum Basale |
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Definition
1) Stem Cells-- produce epithelium
2) Keratinocytes-- produce tough fibers
3)Malanocytes-- produce protective pigment
Merkel (Tactile)-- cells that sense touch |
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Term
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Definition
| deepest laye, cuboidal or law columnar cells sitting on basesment membrane, receive nutrients from conective tissue beneath |
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Definition
2nd deepest laye, thickest layer, contain cells that alert immune system
Dendritic cells- modify macrophages from bone marrow |
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Definition
cells are dying, releases lipids from vesicles
Barriers: waterproof, prevent dehydration |
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Definition
| In thick skin only, no nuclei or organnells, filled with eleidin |
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Definition
| surface cells fake off exfoliate, resistant to abrasion and water loss |
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Definition
connective tissue composed of mainly collegen with elastic/reticular fibers
Vascular--contains blood |
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Definition
| are upwards extensions of the dermis into epidermis forming the ridges of fingerprints |
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Definition
1) Papillary-- loosely organized areolar tissues
2) Reticular-- dense irregular connective tissues, responsible for strach, contains adipocytes |
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Definition
Known as suncutaneous or suprerficial fossa, more adipose then dermis
Energy reseviors
Thermal insulation
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Term
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Definition
1) Hemoglobin-- pigment of blood, visible through dermal collegen
2) Carotene-- is yellow pigment from diet
3) Melanocytes-- pigment produce by melanocytes (heredity) |
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Definition
| Blueness resulting from deficiency of oxygen in the circulating blood |
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Definition
[image]Redness due to dilated cutaneous vessels |
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Definition
[image]Yellowing of skin & sclera |
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Definition
[image]Golden-brown color |
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Definition
[image]Pale color from lack of blood flow |
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Term
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Definition
[image]Genetic lack of melanin |
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Definition
[image]Bruise (visible clotted blood) |
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Term
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Definition
[image]Birthmarks,
[image]discolored skin caused by benign tumors of dermal blood capillaries
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Term
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Definition
| Flat aggregation of melonocytes |
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Definition
[image]Elevated melanized skin |
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Definition
[image]leave oily fingerprints on touched surfaces |
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[image]form after birth by repeated closing of the hand |
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Definition
| form in wrist & elbow areas |
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Definition
[image]is visible above skin |
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Definition
[image]is below within follicle |
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Definition
[image]is oblique tube within the skin |
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Definition
| is swelling in base where hair originates |
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Term
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Definition
[image]abnormal hairiness in women or children |
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Term
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Definition
produce oily
prevents dry, brittle, cracked skin/hair
open into hair follicle or skin surface |
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Definition
external ear canal
produce
waterproof keeps eardrum flexible
bitterness repel mites & other pests |
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Definition
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| red rash of nose & cheeks |
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Definition
recurring patches of scaly white and/or yellow inflammation
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Definition
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Term
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Definition
[image]Abnormal epithelial growth |
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Term
[image]basal cell carcinoma |
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Definition
arises from cells of the stratum basale & invades dermis
treated by surgical removal & radiation
least likely form of skin cancer to metastasize |
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Term
[image]Squamous Cell Carcinoma |
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Definition
arises from keratinocytes in the stratum spinosum
if neglected, metastasis to the lymph nodes can be lethal |
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Term
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Definition
arises from melanocytes of a preexisting mole
ABCD--asymmetry, border irregular, color mixed & diameter over 6 mm |
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