Skin Flashcards
Three layers
Epidermis
Dermis
Subcutaneous tissue
Carotene
yellow pigment
Vellus hair
short, fine, less pigmentation
Terminal hair
coarser, pigmented (scalp/eyebrows)
SEBACEOUS GLANDS
present all surfaces except palms/soles; produce a fatty substance secreted onto skin surface through hair follicles
SWEAT GLANDS
Eccrine glands and Apocrine glands
Eccrine glands
sweat glands. widely distributed, open directly onto skin surface, help control body temperature
Apocrine glands
sweat glands. found in axilla and groin, stimulated by emotional stress
Skin cancers are
most common cancers in the U.S.
Most prevalent on hands, neck, and head
types of skin cancers
Basal cell carcinoma
Squamous cell carcinoma
Melanoma
BASAL CELL CARCINOMA (BCC)
Comprises 80% of skin cancers
Shiny and translucent, they grow slowly and rarely metastasize
most common type of skin cancer
basal cell carcinoma
Basal cell carcinoma: the most ___ type of skin cancer
common
Basal cell carcinoma: it is typically seen in
older adults
Basal cell carcinoma: has no known
precursor lesion
Basal cell carcinoma: Approximately 80% of BCCs occur on the
head and neck
Basal cell carcinoma: rarely
metastasize and grow slowly for years prior to developing a more rapid growth rate
Basal cell carcinoma: once the growth speeds up, they grow relentlessly and,
if left untreated, can cause extensive local destruction and disfigurement.