Integumentary System Ch.5 Flashcards
Integumentary System
- Largest organ in the body.
- Made up of skin, hair, nails, and glands.
Epidermis
-Outer most layer of skin
-composed of several sublayers…
starta
stratum corneum
basal layer
Keratin
hard protein that provides a waterproofing characteristics
Melanocytes
produce black pigment called melanin
Dermis
Second layer of the skin. aka corium
Sebaceous glands
Oil glands. located in dermis
Sudoriferous glands
sweat glands. located in dermis
Subcutaneous layer
Third layer of skin. binds the dermis to the underlying structures. aka hypodermis
Adipose
Fat tissue
Exocrine glands
glands that secrete substances out of the body…
sudoriferous/sebaceous glands.
axillae
armpits
adip/o
lip/o
steat/o
Fat
Cutane/o
dermat/o
derm/o
Skin
hidr/o
sudor/o
Sweat
ichthy/o
dry, scaly
kerat/o
horny tissue; hard; cornea
melan/o
black
myc/o
fungus (fungi)
onych/o
ungu/o
nail
pil/o
trich/o
hair
scler/o
hardening; sclera
seb/o
sebum, sebaceous
squam/o
scale
xen/o
foreign, strange
xer/o
dry
cyte
cell
derma
skin
therapy
treatment
an
without, not
dia
through, across
epi
above, upon
hyper
excessive, above normal
sub
under, below
homo
same
Basal Cell Carcinoma
most common type of skin cancer
Squamous Cell Carcinoma
arises from skin that undergoes pathological hardening of epidermal cells
Malignant melanoma
malignant growth of melanocytes.
is the most lethal of skin cancers
Lesions
Areas of tissue that have been pathologically altered by injury, wound, or infection.
- Localized
- Systemic
hyperesthesia
Acute sensitivity to such sensory stimuli as touch, heat, or cold.
vesicles or bullae
fluid filled blisters
dermatoplasty
skin grafting
Neoplasms
Abnormal growths of new tissue that are classified as benign of malignant.
metastasis
invasive cells that spread to remote regions of the body
tumore-node-metastasis system (TNM)
The most common system used for staging tumors
T-size and invasiveness of primary tumor
N-area lymph nodes involved
M-invasiveness (metastasis) of primary tumor
Flat lesions
Primary lesion
Flat, discolored, circumscribed lesions of any size
Elevated lesions
Primary lesion
solid or fluid filled
Depressed lesions
Depressed lesion. Caused by loss of skin surface.
Androgen
Generic term for an agent (usually a hormone…testosterone and androsterone) that stimulates development of male characteristics
ductule
very small duct
homeostasis
state in which the regulatory mechanisms of the body maintain an internal environment within tolerable level, despite changes in the external environment
synthesize
Forming a complex substance by the union of simpler compounds or elements
