Integumentary Flashcards
Most superficial layer. Restricts loss of fluid from internal tissues and separates them from external environment
Stratum corneum
Anchors the epidermis to dermis
Basal cell layer
Consists of fibrous and elastic connective tissues
Dermis
Superficial layer of the dermis. loosely organized collagen matrix, highly vascular
Papillary dermis
Second layer of the dermis. More densely bundled collagen fibers
Reticular dermis
Loose connective tissue that binds the skin to the organ immediately below it
Subcutaneous tissue
What are the four phases of wound healing
- hemostasis
- inflammation
- proliferation or granulation
- remodeling or maturation
Stops bleeding. Day 1 to 3
Hemostasis
New framework for blood vessel growth. Day 3 to 20
Inflammation
Pulls the wound closer. Begins with fibroblast cells, produces collagen Week 1 to 6
Proliferation or granulation
Final proper tissue. Week 6 to 2 years
Remodeling or maturation
Inflammatory phase. Decreases initial blood loss and forms platelets/clots
Vasoconstriction
Inflammatory phase. Increase in capillary permeability and gathering of various cells
Edema
Proliferation. Formation of new blood vessels
Angiogenesis
Maturation phase. Permanent/semi fixed position at joint
Scar contracture
What are the three common integumentary common conditions
-vascular compromise
– Trauma
– Disease
Vascular compromise. Loss of vascular flow to an anatomic site
Arterial insufficiency
Vascular compromise. commonly found on lower part of legs. Leads to ulceration of skin
Venus insufficiency
Vascular compromise. Wound from pressure on tissue, resulting in ischemia
Pressure ulcer
Vascular compromise. Ulcer due to in sensitivity/loss of sensory feedback
Neuropathic ulcer
Pressure ulcer with reddened, unbroken skin
Stage 1
Pressure Ulcer with blister or partial thickness skin loss
Stage 2
Pressure ulcer with full thickness skin loss
Stage 3
Pressure ulcer with full thickness skin loss, involving muscle/tendon/bone
Stage 4
Trauma. Penetrate with sharp edge, strike a narrow opening
Cut
Trauma. Scraping away of skin from rough object or surface
Abrasion
Trauma. Cuts or tears in skin caused by sharp objects
Lacerations
2 layers of the epidermis
- stratum corneum
- basal cell layer
