hair Flashcards
hair
covers most of the animal except part of the muzzle and bottom of foot
many animals have ___ coats instead of hair coats
fur
fur
short, fine, soft hair
there are __ types of hair
3
3 types of hair
primary, secondary, and tactile
primary hair
make up the top coat,
long and stiff,
allows for water to run off
examples; horse mains, cattle, tails, pig bristles, and limb and tail feathering
secondary
make up the undercoat
shorter and fluffy
tactile
thick and longer, usually found on face
grow from deeper within the hypodermis
example; whiskers
hair papilla
structure in dermis where hair develops
hair follicle
tube in which hair grows
cells at the base of the follicle
grow, push up, and keratinize form the hair shafe
hair grows in ___ different patterns
2
simple, compound
simple
one hair per follicle (cows and horses)
compound
2-5 hairs per follicle (dogs and cats)
shedding
process of losing hair