Accessory integumentary structures WK1 L2 Flashcards
WHAT IS THE DERMIS STRUCTURE?
0.6 TO 3MM THICK LAYER BENEATH EPIDERMIS
COMPOSED OF CONNECTIVE TISSUES CONTAINING COLAGEN FIBERS
FORMS RIDGES OF FINGERPRINTS
WHAT ARE THE LAYERS OF THE DERMIS?
PAPILLARY LAYER
RETICULAR LAYER
WHAT IS THE PAPILLARY LAYER?
AEREOLAR CONNECTIVE TISSUES WITH ELASTIC FIBRES
WHAT IS THE RETICULAR LAYER?
DENSE PART OF DERMIS
DENSE IRREGULAR CONNECTIVE TISSUES WITH BUNDLES OF COLLAGEN FIBRES
CONTAINS HAIR FOLLICLES, NERVES, SUBCUTANEOUS (OIL) GLANDS, AND SUDORIFEROUS (SWEAT) GLANDS
WHAT GIVES THE DERMIS LAYER ITS FLEXIBILITY?
COMBINATION OF COLLAGEN AND ELASTIC FIBRES
EXTREME STRETCHING OF SKIN HOWEVER MAY CAUSE DAMAGE AND RESULT IN STRECTH MARKS
WHAT IS THE HYPODERMIS?
ALSO CALLED SUBCUTANEOUS TISSUES
NOT PART F THE SKIN
MOSTLY ADIPOSE TISSUE
WHAT ARE THE FUNCTION OF THE HYPODERMIS?
ENERGY STORAGE
THERMAL REGULATION
HYPODERMIC INJECTIONS AS HIGHLY VASCULAR
WHAT IS THE PIGMENTATION OF THE SKIN BASED ON?
HAEMOGLOBIN
CAROTENE
MELANIN
WHAT D0ES THE HAEMOGLOBIN DO FOR SKIN PIGMENTATION?
RED PIGMENTATION OF RED BLOOD CELLS SUCH AS LIPS
SHOWS WHERE LITTLE MELANIN BUT LOOTS OF CAPILARIES
WHAT D0ES THE CAROTENE DO FOR SKIN PIGMENTATION?
YELLOW PIGMENT
CONCENTRATES IN STRATUM CORNEUM AND FAT
WHAT D0ES THE MELANIN DO FOR SKIN PIGMENTATION?
YELLOW, BROWN, AND BLACK HUES
PIGMENT SYNTHESIS STIMULATIED FROM UV RADIATION
WHAT ARE ABNORMAL SKIN COLOURS?
CYANOSIS HEMATOMA ERYTHEMA PALLOR ALBINISIM JAUNDICE
WHAT IS CYANOSIS?
BLUENESS CAUSED BY OXYGEN DEFICIENCY
WHAT IS HEMATOMA?
BRUISING, MASS OF BLOOD CLOTTING SHOWING THOUGH THE SKIN
WHAT IS ERYTHEMA?
REDNESS CAUSED BY INCREASED BLOOD FLOE