Skin Diseases

Vocabulary

antimicrobial peptide

any one of many naturally occurring molecules at the skin's surface that provide a chemical defense against the infection of microbes across the skin

biota

collective term given to all species of living things in a particular region

bullous

characterized by large fluid-filled vesicles called bullae that form on the skin and eventually burst, leaving behind a yellow crust

cellulitis

bacterial infection of subcutaneous connective tissue that is triggered when an open wound is invaded by bacteria, typically Streptococci or Staphylococci

desquamation

shedding of the outermost layer of skin to protect the body from microbes bound to the skin

exanthem

skin eruption or rash covering most of the exterior of the body that is often associated with a viral or streptococcal disease

folliculitis

inflammation and infection of hair follicles typically caused by a bacterium

impetigo

highly contagious infection of the epidermis, the outer layers of the skin, that is common in young children

integument

tough outer covering that in humans consists of skin and related structures such as glands, nails, and hair

keratin

structural protein that lends durability and water impermeability to skin, hair, and nails

keratinized

characteristic of epidermal cells that have changed into a tough, resilient, keratin-containing form as they mature and eventually die

lysozyme

enzyme produced by many types of cells in the body that breaks down the bonds that make up bacterial cell walls

measles

viral disease the results in blotchy patches of raised blisters on the skin and produces other symptoms such as pneumonia, diarrhea, and inflammation of the cornea

necrotizing fasciitis

skin infection that can be caused by Group A Streptococcus and Staphylococcus aureus and has been called "flesh-eating disease"because of the rapid tissue death (gangrene) it causes

otitis externa

infection and inflammation of the outer ear canal

papilloma

benign small tumor that grows outward from the skin's surface and is caused by a virus

sebaceous gland

gland that is joined to a hair follicle and produces oil to keep the skin supple and prevent the growth of microorganisms

sebum

lipid-rich oily substance that lubricates and helps waterproof the skin, protecting against invasion of some bacteria

transmission

passing of a disease-causing pathogen from one infected person or group to another by either direct or indirect contact