| A | B |
|---|
| epithelial membranes | Covering membranes including the cutaneous, mucous, & serous membranes |
| cutaneous membrane | skin; membrane exposed to air |
| mucous membrane | epithelium that rests on loose connective tissue and lines all body cavities open to the exterior of the body |
| serous membrane | simple squamous epithelium resting on areolar tissue lining closed body cavities |
| peritoneum | serosa lining the abdominal cavity and covering its organs |
| pleura | membrane surrounding the lungs |
| pericardium | membrane surrounding the heart |
| synovial membranes | composed of areolar tissue; line capsules surrounding joints |
| keratin | tough, insoluble protein found in hair, nails, & epidermis |
| epidermis | outer layer of skin made of stratified squamous epithelium |
| dermis | second layer of skin; made of dense connective tissue |
| hypodermis | adipose tissue deep to the dermis |
| stratum basale | deepest layer of cells in the epidermis |
| stratum spinosum | layer of epidermis superior to the stratum basale |
| stratum granulosum | layer of epidermis superior to the stratum spinosum |
| stratum lucidum | clear layer of the epidermis found only on hairless, thick areas of skin |
| stratum corneum | outer layer making up most of the epidermis containing dead cells |
| melanin | pigment in skin that ranges from yellow to brown to black |
| papillary layer | upper dermal region |
| dermal papillae | peglike projections in the papillary layer that contain capillary loops, pain receptors, & touch receptors |
| reticular layer | deepest skin layer containing blood vessels, sweat glands, oil glands, & Pacinian corpuscles |
| sebaceous glands | oil glands |
| sebum | mixture of oily substances & fragmented cells |
| sudoriferous glands | sweat glands |
| eccrine glands | most numerous type of sweat gland |
| apocrine glands | sweat glands found mainly in the axillary & genital areas that empty ducts into hair follicles |
| arrector pili | small bands of smooth muscle cells that pull hair upright |
| athlete's foot | itchy, red peeling condition caused by a fungus |
| boils | inflammation of hair follicles and sebaceous glands |
| cold sores | fluid-filled blisters caused by a herpes simplex infection |
| contact dermatitis | itching, redness, swelling of skin caused by exposure of skin to chemicals |
| impetigo | water-filled, raised lesions usually found around the mouth & nose; caused by staph |
| psoriasis | overproduction of skin cells resulting in reddened lesions with dry, silvery scales |
| first-degree burn | only the epidermis is damaged |
| second-degree burn | involve injury to the epidermis & upper region of the dermis |
| third-degree burn | destroys entire thickness of skin; regeneration is not possible |
