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36 Cards in this Set

  • Front
  • Back

ORGANS OS INTEGUMENTARY SYSTEM

SKIN AND ITS ACCESSORY STRUCTURES - HAIR, NAILS, AND GLANDS. BLOOD VESSELS, MUSCLES, AND NERVES

INTEGUMENT

CUTANEOUS MEMBRANE THAT COVERS THE OUTER SURFACE OF THE BODY. LARGEST ORGAN BY SURFACE AREA AND WEIGHT

FUNCTIONS OF THE SKIN

REGULATE TEMP


SENSORY PERCEPTIONS


SYNTHESIS OF VITAMIN D


EMOTIONAL EXPRESSION


RESERVOIR OF BLOOD

STRUCTURE OF SKIN

2 LAYERS -


EPIDERMIS - SUPERFICIAL, CONSISTS OF EPITHELIAL TISSUE


DERMIS - DEEPER, THICKER, CONSISTS OF C.T.

FOUNDATION FOR THE SKIN

SUBCUTANEOUS (SUGQ - HYPODERMIS) LAYER UNDERNEATH THE DERMIS, NOT PART OF THE SKIN. LOOSE AREOLAR/ADIPOSE C.T.. ATTACHES SKIN TO UNDERLYING TISSUES AND ORGANS

EPIDERMIS

COMPOSED OF KERATINIZED STRATIFIED SQUAMOUS EPITHELIUM W/4 TYPES OF CELLS:


KERATINOCYTES


MELANOCYTES


LANGERHANS


MERKEL

KERATINOCYTES

90% OF CELLS, PRODUCE KERATIN - TOUGH FIBROUS PROTEING THAT PROVIDES PROTECTION

MELANOCYTES

PRODUCE PIGMENT MELANIN - PROTECTS AGAINST UV RADIATION

LANGERHANS

MACROPHAGES IN RED BONE MARROW, INVOLVED IN IMMUNE RESPONSES

MERKEL

ASSOCIATED WITH NERVE ENDINGS, DETECT LIGHT TOUCH AND PRESSURE

4 -5 LAYERS OF EPIDERMIS IN THIN AND THICK SKIN

STRATUM BASALE


STRATUM SPINOSUM


STRATUM GRANULOSUM


STRATUM LUCIDUM


STRATUM CORNEUM

STRATUM BASALE

BOTTOM DEEPEST LAYER. CONTINUOUS CELL DIVISION AND PRODUCES ALL OTHER LAYERS. SINGLE LAYER OF EPITHELIAL CELLS ON BASEMENT MEMBRANE ATTACHED BY HEMIDESMOSOMES

STRATUM SPINOSUM

8-10 LAYERS OF KERATINOCYTES. CELL DIVISION MAY OCCUR IN THE DEEPEST LAYERS. CELLS ARE CONNECTED TO EACH OTHER BY DESMOSOMES. KERATIN FILAMENTS OF THE CYTOSKELETON INSERT INTO THE DESMOSOME

STRATUM GRANULOSUM

2-5 LAYERS OF CELLS FILLED WITH GRANULES OF KERATOHYALIN (PROTEN THAT ASSEMBLES FILAMENTS INTO KERATIN) AND GRANULES OF LIPID-FILLED LAMELLAR BODIES. CELLS DIE AS THEY MVE THROUGH, GRANULES DISCHARGE. HELP TO WATERPROOF SKIN

STRATUM LUCIDUM

SEVERAL LAYERS OF DEAP TRANSPARENT CELLS, ONLY PRESENT IN THICK SKIN....PALMS, SOLES, FINGERTIPS

STRATUM CORNEUM

OUTERMOST, MOST SUPERFICIAL LAYER COMPOSED OF 20 OR MORE LAYERS OF DEAD KERATINOCYTES FILLED WITH KERATIN PROTEIN (DEAD BAGS OF KERATIN)

DESQUAMATION

PROCESS OF CELLS FROM THE STRATUM CORNEUM LAYER THAT SHED AND ARE REPLACED FROM DEEPER STRATA

KERATINIZATION

PROCESS OF ACCUMULATING MORE AND MORE OF THE WAXY PROTEIN KERATIN AS CELLS MOVE FROM THE DEEPEST LAYER TO THE SURFACE LAYER. TAKES 4-6 WEEKS

DANDRUFF

EXCESS OF KERATINIZED CELLS FROM THE SCALP

PSORIASIS

KERATINOCYTES DIVIDE VERY RAPIDLY AND ARE SHED IN AS LITTLE AS 7 - 10 DAYS

THIN SKIN

HAIRY, COVERS ALL BODY REGIONS EXCEPT PALMS, PALMAR SURFACES OF DIGITS, AND SOLES. LACKS STRATUM LUCIDUM

THICK SKIN

HAIRLESS, COVERS PALMS, PALMAR SURFACES OF DIGITS, AND SOLES.

MELANIN

SKIN PIGMENT PRODUCED BY MELANOCYTES IN THE STRATUM BASALE. SEVERAL FORMS - SEVERAL DIFFERENT COLORS


ABSORBS UV LIGHT

CAROTENE

YELLOW PIGMENT INGESTED THROUGH DIET. ACCUMULATES IN LIPIDS AND CAN GIVE YELLOWISH TINT

BLOOD

IMPARTS REDDISH COLOR WHICH DEEPENS WHEN BLOOD FLOW NEAR THE SURFACE INCREASES. BLUSHING, ANGER, ALCOHOL, ETC.

NEVI

BIRTHMARKS OR MOLES - CHRONIC LESIONS OF THE SKIN, USUALLY BENIGN

MALIGNANT MELANOMA

CANCER OF MELANOCYTES

DERMIS

COMPOSED OF C.T. CONTAINING COLLEGEN AND ELASTIC FIBERS. HAS TWO REGIONS;


PAPILLARY


RETICULAR

PAPILLARY REGION OF DERMIS

LIES BELOW THE EPIDERMIS AND CONSISTS AREOPAR C.T. CONTAINING THIN COLLAGEN AND ELASTIC FIBERS

RETICULAR REGION OF DERMIS

DENSE IRREGULAR C.T. CONTAINING COLLAGEN AND ELASTIC FIBERS, ADIPOSE CELLS, HAIR FOLLICLES, NERVES, SEBACEOUS GLANDS, AND SUDORIFEROUS (SMELLY SWEAT) GLANDS

STRIAE

TEARS OF EXCESSIVE STRETCHING IN THE RETICULAR REGION OF THE DERMIS CAUSING STRETCH MARKS

CLEAVAGE LINES

TENSION LIES IN THE SKIN THAT INDICATE THE PREDOMINANT DIRECTION OF UNDERLYING COLLAGEN FIBERS

EPIDERMAL RIDGES

REFLECT CONTOURS OF THE UNDERLYING DERMAL PAPILLAE AND FORM THE BASIS FOR FINGERTIPS AND FOOTPRINTS. INCREASES FRICTION

SUBCUTANEOUS LAYER

HYPODERMIS, ATTACHES THE SKIN TO THE UNDERLYING TISSUES AND ORGANS, CONTAINS BLOOD VESSELS AND NERVES, SENSORY RECEPTORS, COMPOSED OF AREOLAR C.T. AND ADIPOSE. HALF BODYS FAT IN THIS AREA PROVIDING PADDING AND INSULATION

SENSORY RECEPTORS

SUPERFICIAL LAYER - MERKEL DISCS - LIGHT TOUCH


DEEP - PACINIAN (LAMELLATED) CORPUSCLES - DEEP TOUCH AND PRESSURE

STOPPED AT HAIR AND NAILS

FINISH LATER