Skin Color - = overexposure clumping of elastin fibers depressed immune system can alter DNA to cause skin cancer photosensitivity = to

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Skin Color due to combination of three different pigments: melanin yellow, orange, brown or black pigments racial shades due mainly to kinds and amount of melanin pigments mainly in stratum basale also, amount varies with exposure to sun=suntan carotene esp in stratum corneum and subcutaneous layers hemoglobin in blood of skin capillaries cyanosis = bluish cast poor oxygenation erythema = redness emotional, hypertension, inflammation pallor = paleness emotion, anemia, low blood pressure jaundice = yellowing liver disorder, >bile pigments in blood bronzing = Addison’s disease, adrenal cortex bruising (hematoma)= escaped blood has clotted hematomas deficiency in Vit C or hemophilia leathery skin
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Unformatted text preview: = overexposure clumping of elastin fibers depressed immune system can alter DNA to cause skin cancer photosensitivity = to antibiotics & antihistamines “Skin Markings” skin is marked by many lines, creases and ridges friction ridges: ‡ markings on fingertips characteristic of primates allow us to manipulate objects more easily flexion lines: on flexor surfaces of digits, palms, wirsts, elbows etc Human Anatomy & Physiology: Integumentary System, Lecture Notes, Ziser, 2005 5 skin is tightly bound to deep fascia at these points freckles: flat melanized patches vary with heredity or exposure to sun moles: elevated patch of melanized skin, of the with hair mostly harmless, beauty marks...
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This note was uploaded on 01/30/2012 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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Skin Color - = overexposure clumping of elastin fibers depressed immune system can alter DNA to cause skin cancer photosensitivity = to

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