Ch. 13 Flashcards
Integumentary system
DERMA acronym
D vitamin synthesis
Elimination of wastes through perspiration
Regulation of body temp through perspiration
Makes info about environment available to brain
Acts as barrier to pathogens
Kerat(o)
Pertaining to keratin, horny, or cornea
Hidr(o)
Pertaining to sweat
Onych(o), ungu(o)
Pertaining to nail
Pil(o), trich(o)
Pertaining to hair
Seb(o)
Pertaining to sebum
Dermatome 3 meanings
1) Layer of tissue in early human development in embryology
2) An instrument used to cut thin slices of skin for grafting in surgery
3) Skin surface area innervated by a spinal nerve according to the nerves source in A&P
Lunula
White part of the nail
Onychophagia
Habitual nail biting
Curettage
Scraping of material from a lesion using an instrument called a curet
Induration
Hardening of a tissue, especially the skin, and is usually caused by edema and inflammation
Erythemat(o)
Pertaining to redness
Xer(o)
Pertaining to sharpness
-phoresis
Pertaining to transmission
rhytid(o)
Pertaining to wrinkle
Discoid lupus erythematosus
Chronic systemic disease characterized by lesions covered in scales, believed to be autoimmune
Ichthyosis
A variety of skin conditions where it is dry and scaly, sometimes hereditory
Pediculosis
Infestation by human lice
Macule
Nonraised, small dark spot on skin
Papule
Small raised lesion less than 1cm in diameter
Plaque
Flat, dry, often raised patch
Vesicles
Small blisters containing clear fluid
Bullae
Blisters greater than 1cm filled with clear fluid
Pustules
Small circumscribed elevation of skin containing purulent fluid
Wheals
Transient, elevetaed, and irregularly shaped lesions resulting from an allergic skin reaction
Fissures
Linear crack in the epidermis
Scales
Dried fragments of sloughed epidermis frequently seen in psoriasis
Scar
Mark remaining after healing of the wound
Ulcer
Deep, irregular erosions that extend into the dermis
Excoriation
A scratch, injury to surface of the body created by trauma
Furnucle
A boil, localized suppurative infection that begins with infection of the hair follicle
Seborrhea
Excessive production of sebum that leads to acne vulgaris
Petechiae
Tiny purple or red spots appearing on skin as result of tiny hemorrhages from within the dermal or submucosal layers
Ecchymosis
Hemorrhagic spot larger than a petechia forms a nonelevated blue or purplish patch
Keratoma
A callus
Basal or squamous cell carcinoma
Common types of skin cancer that are rarely invasive
Malignant melanoma
Pigmented neoplasm that begins in skin and is highly metastatic, one of the most aggressive forms of all skin cancers causing high mortality rate
Kaposi sarcoma
Common malignancy associated with AIDS
Decubitus ulcers
Bedsores that result of mechanical trauma and lack of adquate blood circulation to affected area, often in individiauls wit limited mobility
Keloid
Excessive overgrowth of scar tissue
Different types of wounds
Laceration - torn, jagged wound
Puncture - piercing
Abrasion - skin scraped away
Contusion
AA blow to the body causing subcutaneous bleeding but does not interupt the integrity of the skin, also called a bruise
Different degrees of burn
1st - only epidermis
2nd - extends into dermis
3rd - through dermis and epidermis, sometimes into subcutaneous fat
4th - underlying bone and muscle damage
Rule of nines
Calculates the size of a burn injury
Diaphoresis
Excessive sweating
Thermoplegia
Heat/sunstroke
Dehiscence
Rupture of a wound closure or separation of a surgical incision
Escharotomy
Surgical incision of constricting necrotic tissue resulting from a severe burn to relieve pressure and restore blood flow
I&D abbreviaton
Incision and drainage
Antipruritics
Agents to relieve itching
ung abbreviation
Ointment