the skin and its parts chapter 4

stratum corneum

outermost epidermal layer

the integumentary system provides the body protection from three types of environmental damage ; _________, __________ and ____________

chemical , mechanical , and microbial

vitiligo

condition of hypo-pigmentation

the outermost layer of the skin forms from the embryological germ layer _________ and develops into _____________ epithelial tissue

ectoderm & stratified squamous

Two categories of skin aging factors are known as ______ and _______

extrinsic and intrinsic

lipoma

fat cell tumor

hair papilla

hair follicle base

the four categories of skin appendages are ______, _______, ______, and _______

hair, nails, nerves and glands

the three layers of human skin from deep to superficial are _________, _____________ and ____________

hypodermis, dermis, and epidermis

inherent

inborn

furuncle

inflamed hair follicle; a boil

hair medulla

inner layer of the hair

fingernails and toenails are composed of the protein ________

keratin

tinea

ringworm

the skins ability to detect environmental stimuli is due to its many specialized nerve cells, which are called ___________

sensory receptors

sebum

skin and hair "oil"

the innermost layer of the epidermis is known as the _________

stratum germinativum

the bulk of the dermis is composed of loose connective tissue known as ____________, which contains the fibers __________, ____________, and ____________

alveolar, collagen, elastin, and rectulin

stratum lucidum

associated with thick skin

commensals

beneficial bacteria found on the skin

the _________ , __________ , and ___________ glands are commonly found in the skin

ceruminous, sebaceous , and sweat

stratum spinsoum

a layer of epidermis that contains immune system cells

malpighian layer

a layer of epidermis that contains melanocytes for the production of pigmentation

angiogenic factors

a secretion that initiates development of the blood vessels

lunula

white "half moon" portion of the finger nail