Ch10 - Integumentary System Flashcards
Integumentary system
The skin, the largest organ and system of the body
Functions of the integumentary system
Protects internal organs
Prevents excessive loss of water
Sense organ
Regulates body temperature
Normal changes of aging to the integumentary system
Thinner, drier, more fragile skin
Loss of skin elasticity
Less fatty tissue can make you feel colder
Wrinkles and brown spots
Harder, more brittle nails
Less oil from sebaceous glands can cause dry, itchy skin
Cellulitis
A bacterial infection affecting the skin and soft tissue
Malaise
A general sense of feeling unwell
Methicillin-resistant Staphylococcus aureus (MRSA)
Bacteria (Staph) that have developed resistance to the antibiotic methicillin
Sepsis
An infection in the bloodstream
Treatments for cellulitis
Oral antibiotics for mild infections
IV antibiotics for more severe (systemic) cases
Most common: penicillin and cephalosporin
Treatments for MRSA
Can be difficult to treat - is a ‘super bug’
Oral antibiotics may be used for less severe cases
IV antibiotics for more severe cases (vancomycin)
Pruritus
Medical term for itching
Contact dermatitis
Inflammation of the skin caused by contact with an irritant
Atopic dermatitis
Inflammation of the skin not caused by contact with an irritant; also called eczema
Treatments for dermatitis
Skin hydration (lotions or creams containing petrolatum or lanolin)
Topical or oral corticosteroids reduce inflammation and swelling
Antihistamines can control overreactive allergic reactions
Immunosuppressant drugs for severe cases
Psoriasis
A chronic skin condition caused by an autoimmune disorder that results in the body creating too many skin cells which cause white or red skin patches that may be itchy and painful
Treatments for psoriasis
Milder cases: topical corticosteroids and moisturizing lotions/creams
More severe cases: phototherapy (light treatments), immunosuppressants