Skin Flashcards
(115 cards)
What is keratin?
A protien that provides skin with waterproofing properties
What is the combining form if keratin?
Kerat/o
What’s the other name for dermis?
Corium
What is perception?
The ability to recognize sensory stimuli
What us tactile perception?
The ability to recognize touch sensation
Define fibroblast
Fiber producing cells. I.e. Collagen
Define collagen
Tough, flexible, fibrous protein found in skin, bone, cartilage, tendons and ligaments
What does the integumentary system consist of?
Skin and appendages (appendages includes glands, hair, fur, wool, feathers, hooves, nails…)
What do sebaceous glands secrete?
Sebum
What are ductules
Ducts
Why are sebaceous glands considered holocrine glands?
Because the secreting cells and their secretions make up the discharge produced
What are, and where are sudoriferous glands?
Sweat glands. They’re located in the dermis
What are sudoriferous glands divided into?
Eccrine glands (produce and secrete water, salt or sweat) and apocrine glands (secrete odorous substances into hair follicles)
Define hidrosis
Excess production of sweat
What is the combining form of sweat?
Hidr/o
What do anhidrosis and hyperhidrosis mean?
Anhidrosis is abnormal reduction of sweating
Hyperhidrosis is excessive sweating
What are ceruminous glands?
Modified sweat glands in the ear cabal which secrete cerumen (earwax)
What are the combining forms for hair?
Pil/i
Pil/o
Trich/o
What is the hair shaft composed of?
Cuticle
Cortex
Medulla
What are hair follicles
Tubes that hold hair fibers
What are arrector pili
Tiny muscles attached to the hair follicle which cause the hair to stand
What is piloerection
Hair standing straight up
Compare fur to pelt
Fur is short, fine soft hair
Pelt is skin in addition to fur or hair
What are guard hairs
Primary hair/topcoat
Long, straight, stiff hairs that form thr outer coat