Integumentary System Flashcards
Anatomy comes from the Greek word _____ which means _____
Anatome, dissection
Study of developmental anatomy
Embryology
Study of the description of skeleton
Osteology
Study of the description of joints
Syndesmology
Study of the description of muscles
Myology
Study of the description of viscera
Splanchnology
Study of the description of organs of circulation
Angiology
Comprised with the skin with its associated structures such as hairs, glands horns, hoofs, claws, etc.
Integumentary system
Homeotherms
Warm- blooded
Poikilotherms
Cold-blooded
Difference between sebaceous glands and sweat glands
Sebaceous glands - secretes sebum
Sweat glands- secretes sweat
Function of sebaceous glands
Lubricates skin & discourage bacterial growth
Function of sweat glands
Regulate body’s temperature/ waste excretion
Study of the biology of animals that live alongside humans
Animal science
Concerned with the business aspects of producing livestock animals
Animal husbandry
Deals with breeding, farming, and care of farm animals
Animal husbandry
Study of the structure of the body and the relation of its parts
Anatomy
Description of the structure of a single type of species
Special anatomy
Description of the structure of a single type of species
Special anatomy
Deals with the form and structure of the principal domesticated animals, largely descriptive in character
Veterinary anatomy
Scientific study of the functions and mechanisms which work within a living system
Physiology
Lie toward the belly
Ventral structures
Outer layer of skin
Epidermis
Contains hair follicles, sweat glands, sebaceous glands, nerves and blood vessels
Dermis
Contains larger blood vessels and nerves
Hypodermis
Drying and hardening of the superficial cells
Keratinization and cornification
Local increase in thickness in response to continuous trauma
Callus
Consists of layers of dead, flattened cells
Stratum corneum
Contains keratinocytes
Stratum granulosum
Has a spiny appearance because of its desmosomes
Stratum spinosum
Layer of mitotically active cuboidal or columnar cells
Stratum basale
Variable amounts of fat, the _____ _____ are present in the hypodermis
Panniculus adiposus
Hair which form the smooth outer coat
Guard hairs
Also called the undercoat, which are fine and often curly
Wool hairs
Long stiff hairs with specialized innovation that renders them effective as organs of touch
Tactile hairs
Tiny bundle of smooth muscle fibers that erects hair
Arrector pili muscle
Dermis of hoofs and horns
Corium
Thin, waxy layer that covers the outside of the hoof
Periople
Connection between hoof wall and corium
Laminae
Shock-absorbing modification of the subcutis
Digital cushion
Soft type of horn
Epikeras
Formed over the cornual process, a bony lore that projects from the frontal bone of the skull
Horns
Accessory digits
Dewclaws
Do not bear weight in paws
Dewclaws
Hornlike growths on the medial sides of horse’s limbs
Chestnuts
Small projections of cornfield epithelium in the center of the palmar part of the fetlock of the horse
Ergots
Epithelial growths that forms the distinctive outer covering, or plumage
Feather
External anatomical structure of birds that is used for eating and for preening killing prey, etc.
Bill I beak
Fleshy growth or crest on the top of the head of birds
Comb
Fleshy caruncle hanging from various parts of the head or neck birds/mammals
Wattle
Erectile, fleshy protuberance on the forehead of turkey
Snood
Functions of integumentary system (6)
Physical protection and barrier
Prevention of dehydration
Body temperature regulation
Sensory information
Metabolic actions
Excretion of wastes
What vitamin is synthesized from cholesterol in the skin after sun exposure?
Cholecalciferol (D3)
Layers of epidermis (5)
Stratum corneum
Stratum lucidum
Stratum granulosum
Stratum spinosum
Stratum basale
Structure of hooves
Corium
Periople
Laminae
How are horns formed
Cornual process
Which digits do dewclaws correspond to?
Digits 2 and 5
Where are chestnuts located on horses
Proximal to the carpus
Skin layer that has variably present, poorly stainable cells
Stratum lucidum
Adexna of the skin
Hair
Horns
Hooves
Wattle
Comb
Snood
Feather
Bill
Beak
Dewclaws
Chestnuts
Ergots
Base of the follicle where living cells divide and grow to build the shaft
Hair bulb
Intimately covers the root of the hair and is continuous with the epithelial cells covering the dermal papilla
Internal epithelial root sheath
Surrounds the internal root sheath, is continuous with the epidermis, and gives rise to the sebaceous glands
External epithelial root sheath