What is Skin

Finger like projections (ridges) from the superion (upper) dermal region. These ridges form lines or striations on the palms of hands and soles of feet, the pattern of these ridges is unique to each individual-a.k.a. Fingerprints and footprints

• Sweat Gland- Sudoriferous glands
• oil glands- sebaceous gland

Bloos vessels dialate (get larger), so the ecxess heat from the blood can escape through the skin

blood vessels constrict (get smaller), so the heat is retained in the body

a reddish color of the skin- usually caused by burns or conjestion of blood in the vessles

a bluish discoloration of the skin- caused by insufficient oxygen. can be associated with the heats, lung, and circulatory diseases of disorders

a yellowish discoloration of the skin- indicate bile in the blood as a result of liver or gallbladder disease. can also occure in conjunction with certain diseases that involve the distruction of red blood cells

a flat discolored lesion that is less than 1 cm in diameter

a small solid raised lesion that is less than 0.5 cm in diameter

a circumscribed elevation of skin containing fluid that is less that 0.5 cm in diameter

a small cirsumscribed elevation of the skin containing pus

a collection of dried serium and cellular debris

a smooth, slightly elevated swollen area that is redder or paler than the surrounding skin. it is usually accompanied by itching

a open sore or erosion that is skin or mucuous membrane resulting in tissue loss

A contagious skin infection caused by staphylococcal or streptococcal bacteria and seen most commonly in children. Impetigo is characterized by superficial pustules that rupture and form thick yellow crusts, usually on the face.

A wart

inflammation of the skin; skin becomes itchy and may develop blisters

the most common form of acne; usually affects people from puberty to young adulthood

acne - an inflammatory disease involving the sebaceous glands of the skin; characterized by papules or pustules or comedones

A contagious fungal skin infection caused by a species of Trichophyton or Epidermophyton that usually affects the feet, especially the skin between the toes, and is characterized by itching, blisters, cracking, and scaling; ringworm of the foot. Also called tinea pedis.

A chronic, inflammatory skin disease in which recurring reddish patches, often covered with silvery scales, appear especially on the knees, elbow, scalp and trunk. Psoriasis is noncontagious and is inheritable.

Any of a number of contagious skin diseases caused by several related fungi, characterized by ring-shaped, scaly, itching patches on the skin and generally classified by its location on the body. Also called tinea.

• 3
• Water
• salt
• body waste

• Protection
• maintenance of body temperature
• excretion
• perception of stimuli
• Immunity
• Synthesis of Vitamin D
• Storage
• Absorption