Integumentary

Combining forms for skin cutane derm dermat derma

Functions of the skin Protective membrane Glands which produce secretions Nerve fibers for sensation Maintain body temperature

Integumentary

Epidermis Takes 21 days for normal mitosis of an animal’s skin Animals have thinner epidermis layers than humans Made up of squamous epithelium (flat, platelike cells) Avascular Depends on capillaries for nourishment Melanocytes Keratin (Kerat – horny) is a protein that provides skin with its

waterproofing properties

Structure of the skin

Dermis Composed of blood, lymph vessels, nerve Fibroblasts Histocytes (macrophages) Mast cells Arrector pili Sebaceous gland Sweat glands Follicles

Structure of the skin

Subcutaneous LayerLocated under the dermis and is composed of connective tissue - fat or lipid or adipose tissue.

Fat (adipose) cells

Structure of the skin

Types of hairFur Guard hairs Secondary HairsTactile Hair   Hair developmentSimpleCompound   Color of hair3 primary pigmentsGray hairWhite hair

Shedding/Molting

Hair

Quick  Coronary band (Coronet)  Chestnuts/Ergots

Horn

Antler

Nails, Horns, Hooves

Types of feathers Contour o Remigieso Rectricies

Semiplume Down Filoplume Bristles

Wing trims Larger birds - trim the first 4 primary remigies Smaller birds - trim the first 5-6 primary remigies

Feathers

Abrasion

  Abscess

Acne

Pathology

Hot spots (Pyoderma)

Alopecia

Cellulitis

Pathology

Contusion

Dermatitis

Discoid lupus erythematosus (Collie nose or solar dermatitis)

Pathology

Ecchymosis (bruise)

Eczema

Fissure

Pathology

Fistula Perianal Fistula

Gangrene

Granuloma (Proud Flesh)

Pathology

Lipoma

Melanoma

Papule

Pathology

Pemhigus

Petechie

Sebaceous cyst

Pathology

Ulcer Decubital Ulcer

Urticaria  Vesicle  

Erythema

Pruritus

Pathology

Schnauzer Comedo Syndrome

Demodectic Mange

Sarcoptic Mange

Pathology

Cheyletiella

Cuterebriasis

Dermatophytosis

Pathology

Lick granuloma

Wart

Pathology