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41 Cards in this Set

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SKIN COMPOSED OF TWO LAYER
EPIDERMIS AND DERMIS
ACCESSORY STRUCTURES (LOCATED WITHIN DERMIS;PROTRUDE THROUGH EPIERMIS HAIR;NAILS;GLANDS
3 TYPES OF GLANDS
SWEAT ; SEBACEOUS;MAMMARY
SKIN (CUTANEOUS MEMBRANES) HAS 2 SUBDIVISIONS
EPIDERMIS ; AND DERMIS
STRATIFIED SQUAMOUS EPITHELIUM; CONTAINS 4 TO 5 LAYERS 4 DIFFERENT CELL LAYERS CAN BE FOUND ON MOST AREAS OF THE BODY; 5 CELL LAYERS ARE FOUND IN AREAS WITH ;"THICK SKIN"
EPIDERMIS
"THE DEEP PART" OF SKIN
DERMIS
DEEP TO THE DERMIS
SUBCUTANEOUS LAYER AKA: HYPODERMIS LOOSE CONNECTIVE TISSUE THAT CONNECTS SKIN TO UNDERLYING MUSCLE OR BONE.
NOURISHED BY DIFFUSION FROM CAPILLARIES OF THE UNDERLYING DERMIS; SEPERATED FROM DERMIS BY BASEMENT MEMBRANE.
AVASCULAR
4 CELLS OF THE EPIDERMIS
KERATINOCYTES; MELANOCYTES;
MERKEL;(TACTILE)
LANGERHANS;(DENDRITIC)
KERATINOCYTES
THE MOST *ABUNDANT CELLS IN THE EPIDERMIS, FORMED FROM STEM CELLS, AT LEAST 4 DIFFERENT CELLS CAN BE FOUND ON MOST AREAS OF THE BODY; PRODUCE KERATIN FOR STRENGTH.
MELANOCYTES
PIGMENT CELLS FOUND DEEP IN THE EPIDERMIS; CONTRIBUTE TO SKIN COLOR; PRODUCE MELANIN; TRANSFERRED TO KERATINOCYTES ; USED TO SHADE CELLS FROM UV RADIATION.
MERKEL ( TACTILE )
DETECT LIGHT, TOUCH, AND SUPERFICIAL PRESSURE.
LANGERHANS ( DENDRITIC )
INITIATE AN IMMUNE RESPONSE VIA PHAGOCYTOSIS AGAINEST PATHOGENS AND CANCER CELLS.
DEEP TO THE DERMIS
HYPODERMIS
4 MAIN FUNCTIONS OF SKIN ARE?
*PROTECTION
*EXCREATION AND SECREATION
*SENSATION
* IMMUNE DEFENSE
CONTRIBUTE TO SKIN COLOR?
MELANOCYTES
DEEPEST PORTION OF EPIDERMIS
STRATUM BASALE (GERMINITIVUM)
2ND TO THE DEEPEST LAYER 8 TO 10 LAYERS THICK,
*STRATUM SPINOSUM
2 TO 5 LAYERS THICK...ACCUMULATE PROTEIN GRANULES CALLED KERATOHYALIN WITHIN CYTOPLASM
*STRATUM GRANULOSUM
STRATUM LUCIDUM
THIN CLEAR ZONE, CONSISTS OF SEVERAL LAYERS OF DEAD CELLS;
FOUND ONLY IN PALMS AND SOLES.
STRATUM LUCIDUM
MOST SUPERFICIAL LAYER
25 LAYERS OF THICK DEAD CELLS, IT TAKES 30-56 DAYS TO SHED
STRATUM CORNEUM
LIES DEEP TO THE EPIDERMIS
DERMIS
HAS ALL 5 EPITHELIAL STRATA. FOUND IN AREAS SUBJECT TO PRESSURE OR FRICTION
THICK SKIN
MORE FLEXIBLE THAN THICK SKIN; COVERS REST OF THE BODY; HAIR GROWS HERE;
THIN SKIN
GIVES STRUCTURAL STRENGTH
DERMIS
DERMIS IS DIVIDED INTO THESE TWO LAYERS
1. PAPILLARY LAYERS AND RETICULAR LAYERS
SUPERFICIAL (OUTER)
COMPOSED OF LOOSE AREOLAR CONNECTIVE TISSUE; FORMS FINGERPRINTS.
PAPILLARY LAYER
DEEP ( INNER ) ;
COMPOSED OF DENSE I.T.
OFTEN WITH CLUSTERS OF ADIOCYTES
RETICULAR LAYER
BETWEEN DERMIS AND MUSCLE
HYPODERMIS
DEEP TO SKIN
SUBCUTANEOUS TISSUE
THE MOST SIGNIFICANT FACTOR OF SKIN COLOR?
MELANIN
HAIR STRUCTURE IS FOUND EVERYWHERE ON THE BODY EXCEPT
PALMS, SOLES, LIPS, NIPPLES, PARTS OF EXTERNAL GENITALIA, AND DISTAL SEGMENTS , OF FINGERS AND TOES.
SHAFT
HAIR THAT PROTRUDES ABOVE SKIN SURFACE.
HAIR LOCATED BELOW SURFACE OF SKIN
ROOT
TYPE OF SMOOTH MUSCLE, MUSCLE CONTRACTION CAUSES HAIR TO STAND ON END
ARRECTOR PILI
EPITHELIAL ROOT SHEATH IS AN EXTENSION OF EPIDERMIS
HAIR FOLLICLE
HAIR BULB INCLUDES
1. MATRIX: PRODUCES HAIR
2. DERMAL PAPILLA; PROJECTION OF DERMIS THAT PROVIDES BLOOD SUPPLY
HAIR BULB ALSO INCLUDES
MELANOCYTES PRODUCES MELANIN AND PASS IT TO KERATINOCYTES IN HAIR; RESULTS TO HAIR COLOR;
MOST ABUNDANT IN SCALP AND FACE
SEBACEOUS GLANDS
ACTIVE AT PUBERTY
APOCRINE
MOST COMMON TYPE OF SWEAT GLAND
MEROCRINE