Skin & hair Flashcards
The integument is made up of what?
Skin, fur / hair, claws and hoofs
The outer layer of the skin?
Epidermis
The inner layer of the skin?
Dermis
5 sections of the epidermis
1 - Stratum corneum 2 - Stratum lucidum 3 - Stratum granulosum 4 - Stratum spinosum 5 - Stratum basale
Sratum corneum
The outermost layer of the skin made up of corneocytes
Stratum lucidum
Epidermis on the nose and footpads
Stratum granulosum
The granular layer, where the cell begins to die and fill with keratin
Stratum basale
Basal or base layer - Mitosis takes place in this layer
Greater number of sebaceous glands are found?
Interdigital spaces, chin, dorsal neck, rump and nasal planum
The dermis is a fibrous connective tissue and contains?
1 - Blood vessels 2 - Lymph vessels 3 - Nerves 4 - Sudiferous or sweat glands 5 - Sebaceous glands 6 - Arrector pili muscles
Classification of Suderiferous glands?
Epitrichial (Apocrine) Associated with hair follicles
Atrichial (Eccrine) not associate with hair follicles
Three phases of hair growth
Anagen - Rapid growth
Catagen - Transitional growth
Telogen - Resting phase (no growth)
What can effect hair growth?
Season Breed Sex Temperature Nutrition Genetics Hormones (Thyroxine, Cortisol)
