Skin Practice Test Definitions Flashcards
A cell located within the lower epidermis that processes tyrosinase and melanin.
Melanocyte
A pigment stimulated by sunlight and present in the skin, hair and choroid of the eye
Melanin
The soft skin on the antlers of deer that provides a vascular source necessary during the early seasonal growth of the antler.
velvet
A fold of loose skin hanging from the neck or throat of an animal, especially that present in many cattle.
Dewlap
The deep layer, connective tissue portion of the skin that contains blood vessels, glands and hair follicles.
Dermis
Cells located in small numbers within the epidermal-dermal junction and whose function is to aid in tactile sensory perception.
Merkel’s cells
A tough, waterproof protein that makes up scales,the outer sheaths of beaks and claws, and feathers; a major component of the epidermis, nails, hair, horns, and hooves.
Keratin
Glands that release their secretions through ducts.
Exocrine
Tactile nerve endings located within the subcutaneous tissue of the skin that can sense deep heavy pressure, as well as stretch.
Pacinian corpuscle
The dermis of the skin
Corium
Simple holocrine gland that secretes an oily substance through the hair follicle.
Sebaceous gland
The outer covering of the body, consisting of the skin and all of its related components, such as nails, hair, hooves and horns.
Integument
The keratinized visible portion of hair that extends above the surface of the epithelium.
Shaft
Gland is thought to assist animals in identifying one another.
Tail
Perianal sacs, containing apocreine and sebaceous glands, located at 5 o’clock and 7 o’clock positions relative to the anus.
Anal sacs
The interdigitations between the corium and hoof that serve as the attachment sites between the hoof the coffin bone.
Laminae
Composed of keratinized stratified squamous epithelium, it is the outermost layer of the skin.
epidermis
Found on bighorn sheep, bison, and many other bovine, are two-part structures. An interior of bone (also an extension of the skull) is covered by an exterior sheath grown by specialized hair follicles, as are your fingernails. With most animals they never shed and continue to grow throughout the animals life.
Horns
Infloldings of the skin found in sheep. They are located in front of the eyes, between the digits above the hooves, and in the groin.
Cutaneous pouches
Inflammation of the dermis and epidermis caused by tiny mites.
Mange
Animals that shed their horns seasonally include:
Pronghorn antelope
are found on the heads of male members of the deer family (with the exception of the reindeer, where the females also sport the pointy headgear). They’re made of bone and sprout from the pedicle, a bony platform-type of growth located just above the animal’s skull.
Antlers
the insensitive protective under-surface of the horse’s foot in which are the highly vascular and sensitive tissues (laminae) that connect the hoof to the pedal bone.
Sole
Claws and tails are attached to
Third phalanx
Exocrine glands that secrete substances into the hair follicle, rather than directly to the skin surface
Apocrine sweat glands
