Unit 2 - Lesson 2
Terms in this set (77)
Pigment in the skin that provides color and protects underlying tissues from absorbing ultraviolet rays
Hard protein found in the cells of the outermost part of the epidermis and in the nails.
secretes sebum, also known as oil glands
half moon part of nail
has two layers, one with dead-skin cells called keratin and another, below, with melanin
General category for any inflammation of the skin.
Excessive amounts of fluid move from the blood into the dermis or subcutaneous tissue and cause swelling.
Itching. Pruritus is associated with many skin diseases. It is also present during an allergic reaction because of histamine
Minute, pinpoint hemorrhagic spots in the skin that may be indicative of a coagulation abnormality. For phlebotomists, it should be a warning sign that the patient may bleed excessively.
A flat area of hemorrhage under the skin that occurs after a blunt force injury that causes bleeding but does not break the skin.
Localized collection of blood that forms in the tissue because of the rupture of an artery or vein. This can be caused by a trauma to the cranium or an intracranial aneurysm that ruptures. An intraventricular hematoma occurs within one of the ventricles. A subdural hematoma forms between the dura mater and the arachnoid.
General word for any growing tissue that is not part of normal body structure or function. Neoplasms are also knows as tumors.
Excessive dryness of the skin that can result in a fissure. Can be caused by aging, cold weather with low humidity, vitamin A deficiency, or dehydration.
White, depigmented patches interspersed with normally pigmented skin. An autoimmune response slowly destroys melanocytes in ever-enlarging patches of skin
Bluish-gray discoloration of the skin and nails due to a decreased level of oxygen in the blood
Reddish discoloration of the skin. It can be confined to one area of local inflammation or infection, or it can affect large areas of the skin surface as in sunburn.
A yellowish discoloration of the skin and/or tissues due to a buildup of bile pigments.
Unnatural paleness due to a lack of blood supply to the area.
Gray-to-black discoloration of the skin in areas where the tissue has died. Any dead tissue in the body. After a heart attack, an area of heart tissue may die due to lack of oxygen.
Necrosis of the tissue with subsequent bacterial invasion and decay is known as gangrene, and the area is said to be gangrenous.
Sliding injury that mechanically removes the epidermal layer of the skin to reveal the dermis beneath. Also known as a brush burn.
Deep, penetrating wound with cleanly cut or torn, ragged skin edges.
Repetitive rubbing injury that mechanically separates the epidermis from the dermis and releases tissue fluid. A blister is a fluid-filled sac with a thin, transparent covering of epidermis.
Repetitive rubbing injury that causes the epidermis to gradually thicken into a wide, elevated pad. A corn is a callus with a hard central area with a pointed tip that causes pain and inflammation of deeper skin tissues.
A very firm, abnormally large scar that is bigger than the original injury. It results from an overproduction of collagen fibers.
Also known as pressure sores or bed sores.
A small blister formed by a second-degree burn as the epidermis detaches from the dermis and the space between them fills with tissue fluid.
Localized, pus-containing pocket caused by a bacterial infection in a skin injury
Spreading inflammation and infection of the connective tissues of the skin and muscle. It develops from a superficial cut, scratch, insect bite, blister, or splinter that becomes infected.
Herpes simplex virus, type 1
Occurs on the lips. These lesions tend to recur during illness and stress. Also known as cold sores or fever blisters.
Herpes simplex, type 2
Causes the skin rash of chickenpox during childhood, can later cause shingles
Skin infection in the groin and perineum, caused by microscopic fungi that feed on dead epidermal cells and multiply quickly in the warm, moist environment of body creases and areas enclosed by clothing or shoes
Skin infection on the feet and toes, caused by microscopic fungi that feed on dead epidermal cells and multiply quickly in the warm, moist environment of body creases and areas enclosed by shoes
Irregular, rough skin lesion caused by the human papillomavirus, which is transmitted by contact with an infected individual
Infestation of parasitic mites that tunnel under the skin and produce vesicles. These lesions are pruritic.
also known as hives.
It dilates blood vessels and allows fluid to leak through the blood vessel wall. This causes swelling and redness (edema) and itching
A severe, systemic allergic reaction
Congenital growth in the skin composed of an overgrown mass of superficial and dilated blood vessels.
Basal cell carcinoma
Cancer of the deepest layer (base layer) of epidermis of the skin.
Process by which cancerous cells break off from a tumor and move through the blood vessels or lymphatic vessels to other sites in the body
Squamous cell carcinoma
A skin cancer that arises from the flat squamous cells of the outer part of the epidermis. It is the second most common type of skin cancer, but it grows slowly.
Arises from connective tissue or lymph nodes. Tumors on the skin are elevated, irregular, and dark reddish-blue. This was once a relatively rare malignancy, but is now commonly seen in AIDS patients.
Autoimmune disorder characterized by the production of excessive amounts of epidermal cells. Skin lesions are itchy and show erythema covered with silvery scales and plaques, particularly on the scalp, elbows, hands, and knees.
Autoimmune disorder that causes the skin and internal organs to become progressively hardened due to deposits of collagen.
Autoimmune disorder characterized by deterioration of the collagen in the skin and connective tissues. Symptoms include rash, joint pain, sensitivity to sunlight, and fatigue. Often there is a characteristic butterfly-shaped, erythematous rash that covers the nose and both cheeks.
The clinical picture is a combination of papules, comedos, pustules, and, in some cases, cysts
characterized by constant blotchy erythema, dilated superficial blood vessels, and edema that are made worse by heat, stress, and sunlight.
also called cradle cap in infants
Dried fluid deposit discharged through pores or an incision.
Congenital absence of the sweat glands and inability to tolerate heat.
Profuse sweating caused by an underlying disease condition such as myocardial infarction, hyperthyroidism, hypoglycemia, or withdrawal from narcotic drugs.
Myocardial infarction (MI)
Commonly known as a heart attack
Acute or chronic loss of scalp hair
Excessive, dark hair on the forearms and face.
When an abnormally large hair follicle in the sacral area of the back gets infected
Abnormal passageway (fistula) that begins as an enlarged, abnormal hair follicle that contains a hair that is never shed
Fungal infection of the fingernails or toenails
Inflammation and infection of the skin along the cuticle.
Medical procedure that involves using a curet to scrape off the superficial part of a skin lesion
Medical or surgical procedure in which necrotic tissue is debrided (removed) from a burn, wound, or ulcer.
Surgical procedure for any type of plastic surgery of the skin, such as skin grafting, removal of keloids, release of skin contractures, and so forth
Plastic surgery procedure to the eyelids to remove fat and sagging skin. Often done in conjunction with a face-lift
A surgical graft of tissue from one species to an unlike species.
Uses a skin graft taken from a cadaver. It is frozen and stored in a skin bank until needed. This is a temporary skin graft to protect the patient against infection and fluid loss. It is rejected by the patient's body in about a week.
A surgical graft of tissue from one species to an unlike species.
A topical or locally injected anesthetic drug is used to prevent pain during dental, medical, or surgical procedures.
A drug that treats bacterial infections.
Drug that treats ringworm (tinea). Also treats fungal infection of the nails.
A drug that treats viral infections.
A drug that decreases itching.
Anti-inflammatory drug given to suppress the immune response and decrease inflammation. These drugs are also used as replacement hormone therapy to treat Addison's disease
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