Soft Tissue Flashcards
Sprain
Stretch or tear to a ligament
Strain
Tearing of muscles or tendon
Grade 1
Over stretch, discomfort, oedema, 1-2 days recovery
Grade 2
Partial tear, inflammatory response, function severely limited, many months recovery
Grade 3
Complete rupture, joint instability, pain, inability to contract muscle, separation, immobilisation and surgery 8-12 months
Inflammatory Phase
Vasodilation, cellular response
Proliferative Phase
Re-epithelialisation, fibroplasia, wound contraction
Remodelling Phase
Scarring, collagen removing
Parenchymal Tissue
Functioning cells of organs
Stromal Tissue
Supporting connective tissues, blood vessels and nerves
3 Types of Tissue Repair
Resolution - healing of mild injury, epithelial cells slough and regenerate
Regeneration - specialised tissue is replaced
Replacement - lost tissue is replaced by granulation to form scar tissue
Labile Cells
Constant turn over of new cells e.g. skin cells
Stable Cells
Stop growing when growth is complete e.g. liver, endocrine glands, tubules of kidney
Fixed Cells
Cannot undergo mitosis e.g. nerves, muscles, cardiac cells
Epithelia
Lining of a body cavity or externally e.g. skin or airways
Connective Tissue
Provides structural framework e.g. collagen, tendons, fat tissue, cartilage, bone, blood
Muscle
Produce movement
Nerves
Carry electrical impulses
Exocrine
Secrete products into ducts e.g. saliva, sweat
Endocrine
Ductless, secrete hormones into cellular spaces then blood e.g. thyroid gland
Mucous Membranes
Epithelial cells and connective tissue, lubricates passageways, reduces friction, facilitates secretion/absorption
Serous Membranes
Thin and transparent, line sealed internal body cavities, reduce friction e.g. pleura in lungs, peritoneum in stomach and pericardium in heart
Synovial Membranes
Connective tissue with a layer of fibroblasts and macrophages, lubricates joint capsule, reduced friction, produces nutrients for cartilage
Cutaneous Membranes
Many layers of squamous epithelium, dermis and epidermis e.g. hair, nails, skin