Ch. 5 review Dickson pearson anatomy and physiology – Flashcards
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The epidermis is composed of...
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epidermis
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The dermis is composed of....
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connective
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what two factors account for the death of epidermis cells?
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External environment and age
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skin cuts that run parallel to ________ _____ gape less than cuts running across these skin markings
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cleavage lines
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the scientific tem for stretch marks is....
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Straie
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Skin markings that occur where the dermis is secured to deeper structures are called....
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flexure lines
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________ appear when dermis elasticity declines from age or excessive sun exposure
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Wrinkles
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layer of translucent cells, absent in thin skin is...
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S. Lucidum
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strata containing all/mostly all dead cells
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S. corneum S. Lucidum
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dermal layer responsible for fingerprints
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papillary
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vascular region
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dermis (as a whole)
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actively miotic epidermal region, the deepest epidermal layer
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S. Basale
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site of elastic and collagen fibers
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dermis (as a whole)
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general site of melanin formation
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S. Basale
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major skin area where derivatives (hair, nails) reside
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Dermis (as a whole)
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largely adipose tissue; anchors the skin to underlying tissues
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S. hypodermis
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the stratum germinativum
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S. Basale
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Cells of this layer contain keratohaylin and lamellar granules
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S. Granulosum
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accounts fot the bulk of the epidermal thickness
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S. corneum
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qhen tanned, becomes leather; provides mechanical strength to skin
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dermis (as a whole)
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epidermal layer containing the "oldest" cells
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corneum
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most responsible for the skin color of dark-skinned people; provides natural sunscreen; phagocytized by keratinocytes
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Melanin
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provides an orange cast to the skin; found predominantly in the stratum corneum
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Carotene
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most responsible for the skin color of Caucasians; found within red blood cells in the blood vessels
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hemoglobin
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a bluish cast to the skin, resulting from inadequate oxygenation of the blood
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cyanisis
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observation of this condition might lead to tests for anemia or low blood pressure
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pallor
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accumulation of bile pigments in the blood; may indicate liver disease
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jaundice
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clotted mass of blood that may signify bleeder's disease
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hematoma
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a common result of inflammation, allergy, and fever
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Erythema