HN210 Study Guide - Final Guide: Shoulder Joint, Vertebra, Humerus
Document Summary
Joints & ligaments of the lower limb and knee. Joints & ligaments of the pelvis & knee. Bears a lot of weight so many ligaments required. Comes off transverse process of lumbar l5. 3 ligaments have fibres in a spiral direction around the joint. Maintains stability w/o decreasing range of motion. Contains holes for exit points of muscles. The amount of load being beared in hip is so much greater than shoulder. Hip joint has as labrum (like shoulder joint) Deepens the socket to increase stability but since it is soft tissue, still allows for good motion. If deepened with bone increases stability, decreases mobility. Head of femur larger than head of humerus. Neck of femur is longer & narrow (increases range of motion) More muscles around hip joint than shoulder joint (provides stability. Small articulation of glenohumeral; very large articulation of acetabular-femoral. Shoulder: want more mobility; hip: want more stability.
