KINESIOL 3K03 Lecture Notes - Lecture 7: Joint Effusion, Rheumatoid Arthritis, Thrombus
2 Apr 2016
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Our focus: connective tissue and muscle: anything that gives structure to the body, ligaments, tendons, bone (specialized ct, all the wrapping that surround a bone. Made of similar components, in varying ratios: reflect function. Triple helix: threaded 3 strands, increase strength. Rope-like: resistance to separation and tension. Resist to various joint movements when together. Type 1 collagen: above, strongest, takes long to grow (100 days) Type 2 collagen: gives shape to cartilage, doesn"t limit movement as much. Viscosity changes with temperature: more fluid with increased temperature. Ratios of gel to collagen and cells change with each tissue. Collagen can be layed in a path that creates a shape. Cartilage higher gel: absorb shock (meniscus) What kinds of loads are we dealing with: tensile forces. A decent amount of length caused by little load. Gradually increases after (elastic zone of tissue) Point where load causes permanent change in tissue. Point of failure after this: compressive forces, shearing forces (causes distortion)
