Chapter 4: Integumentary System
Hair
Compressed, keratinized cells that arise from hair follicles, the sacs that enclose the hair fibers
Keratin
Horny, or cornified, layer composed of protein. It is contained in the hair, skin and nails
Dermis
Inner Layer of skin (Also Called the true skin)
Nails
Originate in the epidermis. Nails are found on the upper surface of the end of the fingers and toes. The white area at the base of the nails is called the lunula or moon.
Epidermis
Outer layer of skin
Aut/o
Self
Sudoriferous (Sweat) Glands
Tiny, coiled, tubular structures that emerge through pores on the skin's surface and secrete sweat
-coccus
berry shaped (form of bacterium)
Melanin
color or pigmentation of the skin
necro/o
death (cells, Body)
-ia
diseased or abnormal state, condition of
xer/o
dry
coni/o
dust
-phagia
eating or swallowing
-ectomy
excision or surgical removal
-rrhea
flow, discharge
myc/o
fungus
staphyl/o
grapelike clusters
trich/o
hair
crypt/o
hidden
kerato
horny tissue, hard
-itis
inflammation
-tome
instrument used to cut
bi/o
life
onych/o, ungu/o
nail
-a
noun suffix, no meaning
heter/o
other
seb/o
sebum-oil
Sebaceous Glands
secrete sebum (oil) into the hair follicles where the hair shafts pass through the dermis
Cutane/o, derm/o, dermat/o
skin
-malacia
softening
-plasty
surgical repair
hidr/o
sweat
pachy/o
thick
strept/o
twisted chains
-opsy
view of, viewing
rhytid/o
wrinkles