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chapter 16
| Term | Definition |
|---|---|
| average adult skin sq. ft.weight | 22 sq. ft. Weighs 8 to 10 lbs |
| Epidermis: | outermost layer of the skin thin cellular membrane |
| Dermis | Middle layer of the skin |
| Subcutaneous tissue | is the layer of tissue beneath the skin that consists of fat and connective tissue, playing a role in cushioning, insulating, and storing energy. |
| Epidermis layer contains: | Basal layer Stratum corneum Melanocytes |
| Melanocytes | are specialized skin cells responsible for producing melanin, the pigment that gives color to our skin, hair, and eyes. |
| Stratum corneum | the outermost layer of the epidermis, composed of dead, flattened skin cells that serve as a protective barrier against environmental hazards. |
| Basal layer | the deepest layer of the epidermis, responsible for skin regeneration |
| Sebaceous gland | a small gland in the skin that produces sebum, an oily substance that helps to moisturize and protect the skin and hair. |
| eccrine sweat gland | the primary sweat glands in the human body, responsible for thermoregulation by producing a clear, odorless sweat that cools the skin. |
| apocrine sweat gland | a sweat gland that secretes a viscous fluid into a hair follicle, thicker and more odor |
| epithelium | Layer of skin cells forming the outer and inner surfaces of the bod/ a type of tissue that lines the surfaces and cavities of organs and structures throughout the body, playing a crucial role in protection, secretion, and absorption. |
| integumentary system | The skin and its accessory structures such as hair and nails |
| lunula | Half-moon-shaped, whitish area at the base of a nail |
| xanth/o or jaund/o | yellow |
| ungu/o or onych/o | nail |
| trich/o | hair |
| Ecchymosis: | blue-purple marks on the skin |
| Urticaria | hives an acute allergic reaction in which red, round wheals develop on the skin |
| Cellulitis | Bacterial skin infection |
| Eczema (atopic dermatitis) | inflammation of the skin with erythematous and papulovesicular lesions caused by allergy |
| Exanthematous viral diseases: | a rash due to virus (for example, rubella) |
| Gangrene: | the death of tissue with loss of blood supply |
| Impetigo | contagious pyoderma caused by staph or strep/ reddish sores |
| pyoderma | ulcer/sores |
| Psoriasis | chronic recurrent silver gray scales that itch |
| Scabies | parasitic (tiny mites) infestation on skin infectious |
| Scleroderma: | chronic and progressive disease of the skin with hardening of connective tissue |
| Systemic lupus erythematosus (SLE): | an inflammatory disease of collagen in the skin, joints, and internal organs |
| Tinea: | infection of the skin caused by a fungus— Tinea corporis |
| Keratosis | thickened area of epidermis |
| Nevus (pl. nevi) | pigmented lesion |
| Verruca: | waers |
| Kaposi sarcoma | purple, red, brown lesions on skin caused by Hiv cancer |
| Bacterial analyses | pus or fluid samples examined to detect microorganisms |
| Mohs surgery: | removes thin layers of growth to examine under a microscope (basal and squamous cell |
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