skin chapt
Terms
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- Telangiectasia
- Permanent dilation of groups of superficial capillaries and venules; commonly known as "spider veins"
- Vitiligo
- Depigmentation of the skin caused by destruction of melanocytes; appears as milk-white patches on the skin
- Sebaceaous Cyst
- Distended sebaceous gland filled with sebum
- Erythema
- Reddish hue to the skin thatmay be caused by inflammation of tissues or by sunburn
- Wound
- Disruption in the integrity of body tissue
- Eschar
- Dry, dark, leathery scab composed of denatured protein
- Ischemia
- Local and temporary decrease in blood supply
- Keratin
- Tough, fibrous protein produced by cells in the epidermis called keratinocytes
- Friction
- Force of two surfaces moving against one another
- Keloid
- Abnormal growth of scar tissue that is elevated, rounded and firm with irregular, clawlike margins
- Sebum
- Oily substance secreted by the sebaceous glands of the skin
- Granulation Tissue
- Delicate connective tissue consisting of fibroblasts, collagen and capillaries
- Melanin
- Pigment that gives skin its color
- Ecchymosis
- Large, irregular hemorrhagic area on the skin; also called a bruise
- Nevi or Nevus
- Pigmented areas in the skin commonly known as birthmarks or moles
- Hypothermia
- A condition in which the core body temperature drops below 95 degrees
- Hyperthermia
- Condition in which the core body temperature rises above 106 degrees
- Jaundice
- Yellowing of the skin, mucous membranes, and sclera of the eyes
- Hemorrhageic Exudate
- Discharge that has large component of red blood cells
- Angiogenesis
- Formation of new blood vessels
- Inflammation
- Body's defensive adaptation to tissue injury; involves both vascular and cellular responses
- Alopecia
- Partial or coplete baldness or loss of hair
- Petechiae
- Pinpoint hemorrhagic spots on the skin
- Cyanosis
- Bluish discoloration of the skin, observed in lips, nail beds and earlobes
- Blanching
- White color of skin when pressure is applied
- Shearing
- Force exerted against the skin by movement or repositioning
- Hemostasis
- Cessation of bleeding
- Purulent Exudate
- Discharge that occurs with severe inflammation accompanied by infection; also called pus
- Serous Exudate
- Discharge composed primarily of serum; is watery in appearance and has low protein level
- Serosanguineous Exudate
- Discharge that is clear with some blood tinge;seen with surgical incision
- Lipoma
- Benign tumor consisting of mature fat cells
- Pallor
- Abnormal paleness of the skin, esp in the face, conjunctiva, nail beds and oral mucous membranes
- Debride
- To remove dead or damaged tissue or foreign material from a wound