Chapter 4: Integumentary System

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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


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