Skin System Flashcards
Adipocyte
Fat cell
apocrine sweat gland
One of the large dermal exocrine glands located in the axilla and genital areas. It secretes sweat that, in action with bacteria, is responsible for human body odor.
basal layer
Deepest region of the epidermis; it gives rise to all the epidermal cells.
collagen
Structural protein found in the skin and connective tissue.
dermis
Middle layer of the skin.
eccrine sweat gland
Most numerous sweat-producing exocrine gland in the skin.
epidermis
Outermost layer of the skin.
epithelium
Layer of skin cells forming the outer and inner surfaces of the body.
integumentary system
The skin and its accessory structures such as hair and nails.
Keratin
Heart protein, material found in the epidermis, hair, and nails.
Lunula
Half moon shaped whitish area at the base of a nail
Eumelanin
Brown-black pigment
Pheomelanin
Red-yellow pigment
Paronychium
Soft tissue surrounding the nail border
Sebaceous gland
Oil secreting gland in the dermis that is associated with hair follicles 
Sebum
Oily substance secreted by sebaceous glands 
Squamous epithelium
Flat , scale like cells composing the epidermis 
Stratified
Arranged in layers
Stratum (strata plural )
A layer (of cells)
Stratum corneum
Outermost layer of the epidermis, which consists of flattened keratinized cells 
Subcutaneous layer
Innermost layer of the skin, containing fat tissue 
Cutane/o
Skin
Derm/o, Dermat/o
Skin
Diaphor/o
Profuse sweating (diaphroesis=sweating)
Anthrac/o
Black (anthracosis)
Chlor/o
Green (chlorophyll)
Cirrh/o
Tawny (orange-brown or yellow-brown)
Cirrhosis
Eosin/o
Rosy (eosinophil)
Jaund/o
Yellow (jaundice)
Lute/o
Yellow (corpus luteum)
Melan/o
Black (melanocyte)
Poli/o
Gray (poliosis)
Xanth/o
Yellow (xanthoma)
Erythem/o, Erythemat/o
Redness (erythema)
Hidr/o
Sweat (anhidrosis)
Ichthy/o
Dry, scaly (fish like). (Ichthyosis)
Kerat/o
Hard (keratosis)
Myc/o
Fungus including yeast, molds, and mushrooms. ( mycosis)
Onych/o
Nail ( onycholysis)
Phyt/o
Plant ( dermato phytosis)
Pil/o
Hair ( Pilosebaceous)
Py/o
Pus. ( Pyoderma)
Rhytid/o
Wrinkle ( Rhytidectomy)
Seb/o
Sebum. ( seborrhea)
Squam/o
Scale-like. ( squamous epithelium)
Trich/o
Hair. ( hypertrichosis)
Ungu/o
Nail. (Subungual)
Xer/o
Dry. (Xerosis)
Crust
Collection of dried serum and cellular debris. (A scab)
Cyst
Thick walled, closed sac or pouch containing fluid or semisolid material.
Erosion
Wearing away or loss of epidermis 
Fissure
Groove or crack like sore 
Macule
Flat pigmented lesion measuring less than 1 cm in diameter ( freckles, tattoo marks and flat moles) 
Patch
A large macule greater then 1 cm in diameter
Nodule
Solid round or oval elevated lesion 1 cm or more in diameter
(An enlarged lymph node) 
Papule
Small solid elevation of the skin
(Skin tag, pimples) 
Pustule
Papule containing pus. Small abscess on the skin
Vesicle
Small collection of clear fluid
(Blister) 
Bulla (plural:bullae)
A large vesicle
Wheal
Smooth, edematous (swollen ) Papule or plaque that is centrally redder then the surrounding skin
(Allergic reaction, bug bite)
Alopecia
Absence of hair from areas where it normally grows 
Alopecia areata
An autoimmune disease where the hair falls out in patches without scarring or inflammation
Ecchymosis (Pl: ecchymoses)
Blueish-purpleish mark (bruise) on skin. Caused by haemorrhages into the skin from injury or spontaneous leaking of blood from vessels. 
Petechia (pl: Petechiae)
Small pinpoint hemorrhage. Smaller version of ecchymoses
Pruritus
Itching.
Comedo or comedone
Blackhead
Acne vulgaris
Caused by the buildup of sebum and keratin in the pores of the skin
Cellulitis
Acute infection of the skin marked by local heat, redness, pain, and swelling 
Eczema (atopic dermatitis)
Inflammatory skin disease 
Atopy
Out of place, unusual
Rubella, rubeola
Measles
Varicella
Chickenpox
Erythema infectiosum
Fifth disease. Slapped cheek appearance caused by parvovirus
Hand-foot-and-mouth disease
Caused by enterovirus in children
Gangrene
Death of tissue associated with loss of blood supply 
Impetigo
Bacterial inflammatory skin disease characterized by vesicles, pustules, and crusted over lesions
caused by Staphylococci or streptococci 
Psoriasis
Chronic reoccurring dermatosis marked by itchy, scaly, red plaques, covered by silvery gray scales 
Scabies
Contagious parasitic infection of the skin with intense pruritus
Scleroderma
Chronic progressive disease of the skin and internal organs with hardening and shrinking of connective tissue 
Systemic lupus erythematosus (SLE)
Chronic autoimmune, inflammatory disease of collagen and skin joints and internal organs 
Discoid lupus erythematosus (DLE)
Photosensitive scaling plaque like eruption of the skin