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Skin Deep

Chapter 10 in Romich Vet. Terminology Book

integumentary system consists of skin and its appendages
cutane/o, derm/o, and dermat/o combining word forms for skin
-derma suffix meaning skin
epithelial tissue skin is composed of this
epidermis outermost layer of skin
squamous epithelium composed of flat, plate like cells (stratified)
keratin a protein that provides skin with its waterproofing properties
kerat/o combining word form for keratin
melanocytes basal layer contains these, they produce and contain a black pigment
melan/o combining word form for black or dark
albinism the absence of normal pigmentation
dermis layer of skin located deep to the epidermis, also called corium
fibroblasts fiber-producing cells
collagen tough, flexible, fibrous protein found in skin, bone, cartilage, tendons and ligaments
histiocytes phagocytic cells that engulf foreign substances ( tissue macrophages)
mast cells cells that respond to insult by producing and releasing histamine and heparin
histamine chemical released in response to allergens that cause itching
heparin anticoagulant chemical released in response to injury
perception ability to recognize sensory stimuli
tactile perception the ability to recognize touch sensation
subcutaneous layer located deep to the dermis, also called hypodermis, composed of connective tissue
adip/o combining word form for fat
sebaceous glands oil glands, secrete a substance called sebum
seb/o combining word form for sebum or oily substance
holocrine glands sebaceous glands are considered these because the whole cell and its secretion is found in discharge
sudoriferous glands sweat glands, cells that are located in the dermis
eccrine sweat glands produce and secrete water, salt and waste (sweat)
apocrine gland produce and secrete a strong smelling substance
hyperthermia high body temperature
hypothermia low body temperature
hidrosis the production and excretion of sweat
hidr/o combining word form meaning sweat
anhidrosis abnormal reduction of sweating
hyperhidrosis excessive sweating
ceruminous glands modified sweat glands found in the ear canal
hair rodlike fibers made of dead protein cells filled with keratin
pil/o, pil/i, and trich/o combining word forms for hair
hair shaft composed of cuticle, cortex and medulla
fur short, fine, soft hair
pelt skin in addition to fur or hair
guard hairs long, straight stiff hairs that form the outer coat (primary or topcoat)
secondary hairs fine, softer and wavy hair (undercoat)
tactile hair long, brittle, extremely sensitive hairs usually located on the face (vibrissae) whiskers of a cat
cilia thin, short hairs (eyelashes)
simple pattern hair growth guard hairs that grow from separate follicular openings
compound patter hair growth multiple guard hairs that grow from a single follicular opening
shedding normal hair loss caused by temperature, hormones, photoperiod (light), nutrition and other non-disease causes
hair follicles sacs that hold the hair fibers
arrector pili tiny muscle attached to follicle that causes it to stand erect in response to certain stimuli
piloerection the condition of the hair standing straight up
foot pads (tori) provide cushioning and protection for bones of the foot
walls usually located dorsal and lateral to the distal phalanx
sole located ventral to the distal phalanx, usually flaky
digital pads dogs and cats have these on palmar and planter surfaces of their phalanges
metacarpal pad located on the plamar surface of the metacarpal (higher) single
metatarsal pad located on the plantar surface of the metatarsal (higher) single
plantigrade animals that have well developed foot pads (primates)
nails or claws keratin plates covering the dorsal surface of the phalanges
coronary band region where hoof meets the skin
periople flaky tissue band located at the junction of the coronary band and the hoof wall, extends distally
wall (equine) epidermal tissue that includes the toe, quarters, and heels (equine)
bars raised v-shaped structure on the ventral surface of hoof
sole softer hoof tissue located on the ventral surface of the hoof
frog v-shaped pad of soft horn located in the central region of the ventral hoof surface
bulbs of heel upward thickening of the frog above the heels of the wall
quick connective tissue dermis, contains sensitive blood vessels and nerve endings
quicking trimming the nail or claw to the level of the dermis, results in bleeding
onych/o combining word form for claw
hooves horny coverings of the distal phalanx in ungulates
ungulates hooved animals
ungul/o combining word form for hoof
dewclaws rudimentary bones
polled a breed that is naturally hornless
chestnuts located on the medial surface of the leg in equine
biopsy removal of living tissue for examination of life
incisional biopsy the removal of a piece of tumor or lesion for examination
excisional biopsy removal of an entire tumor or lesion in addition to a margin of surrounding area tissue for examination
culture diagnostic or research procedure used to allow microbes to reproduce in predetermined media
exfoliative cytology scaping of cells from tissue and examination under a microscope
intradermal skin testing injection of test substances into the skin layer to observe a reaction
skin scrape microscopic examination of the skin for the presence of mites
abrasion injury in which superficial layers of skin are scraped
abscess localized collection of pus
acne skin inflammation caused by plugged sebaceous glands and comedome development from papules and pustules
acute moist dermatitis bacterial skin disease that is worsened by licking and scratching (hot spot)
alopecia hair loss resulting in hairless patches or complete lack of hair
atopy hypersensitivity reaction in animals involving pruritius with secondary dermatitis
hyoersensitization increased response to an allergen
hyposensitization decreased response to an allergen
bullae multiple contained skin elevations filled with fluid greater than .5cm in size
carbuncle cluster of furnuncles
carcinoma malignant neoplasm of epithelial tissue
cellulitis inflammation of connective tissue
comedo blackhead or buildup of sebum and keratin in a pore
contusion injury that does not break the skin, pain, swelling and discoloration occur (bruise)
crust collection of dried sebum and cell debris
dermatitis inflammation of the skin
dermatocellulitis inflammtion of the skin and connective tissue
dermatomycosis abnormal skin condition caused by superficial fungi that are found on the skin
dermatosis abnormal skin condition
discoid lupus erythematosus canine autoimmune disease (DLE)
dyskeratosis abnormal alteration of the keratinization
Created by: MKCarter



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