HSS 2511 Lecture Notes - Lecture 2: Wrist, Rheumatoid Arthritis, Synovial Fluid
5 Mar 2017
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Document Summary
Joints: points of contact of 2 or more bones, functions: bind bones together and for mobility. In a joint, the rotational axis is not fixed: when we analyse movements, always assume the rotational axis is in the same place. Cartilage: non-vascularized tissue found in different parts of the body, mostly in joints, 3 types: hyaline, fibrous and elastic. Ligaments: keep body balanced and play a mechanical role in maintenance, dense conjunctive tissues that connect bones and help to stabilize joints, play a role in proprioception (hard to find proprioception during rehab, not very elastic. Ligament injuries: a sprain is elongation or tearing of a ligament, grade 1: stretching of the ligament, minimal microtears, grade 2: partial tear of ligament, grade 3: almost complete or complete tear of ligament, very unstable. Bone functions: support, protection, movement, storage, formation of blood cells.
