Integumentary Flashcards
Functions of the skin
Excretion
Protection
Maintenance of normal body temp
Synthesis of vitamin D3
Storage
Epidermidis
Keeps organisms out
Keratinocytes- protection
Basal cells- stem cells of epidermidis
Merkel cells - receptor cells for touch
Langerhans cells - dendritic cells for antigen presentation
Skin color - carotene and melanin
Sun exposure convert steroid to vitamin D
Dermis
Capillaries sensory neurons accessory organs
Collagen for skin texture, flexibility
Skin, turgor, wrinkles, stretch marks, retin a
Lines of cleavage
Dermal blood supply
Innervation of skin, fibers control, blood flow, secretion, monitor sensory receptors
Signs and symptoms of skin disease
Itching pruritus
Hives urticaria
Rash
Xeroderma dry skin
Unusual spots moles nodules, cysts
Skin lesions
Primary, first lesion to appear, vesicle
When changes in primary legion occur, it’s called a secondary, crust and thickening
Birthmarks- overgrowth, pigmentations
Pigment cell
Vascular
Epidermal
Connective tissue
Aging of the skin
Epidermidis and dermis thins
Langerhans cells decreased by 50%
Vitamin D production declined by 75%
Melanocyte activity declines
Glandular activity declines
Blood supply dermis is reduced
Sweat glands become less active
Hair follicle, stop functioning, or produce fine hair
Elastic fiber network declines
Skin repairs proceed slowly with recurring infections
Skin relevance to PT practice
Stay alert any skin changes
Cara must be taking when using electrical or thermal modalities with elderly people
Skin maybe more fragile in older adults
Clients may require medical referral
Mechanical factors of environmental triggers for skin
Friction
Pressure
Vibration
Cuts
Physical factors of environmental triggers for skin
Heat
Cold
Humidit
Water
Sunlight
Ultraviolet
Ionizing radiation
Chemical agents for environmental triggers for skin
Primary irritants
Sensitizers
Photo irritants
Photo sensitizers
Biologic agents for environmental triggers for skin
Insect and animal parasites
Bacteria
Fungi
Rickettsiae
Fungi
Viruses
Irritant and sensitizing plants and woods
