ATS3466 Study Guide - Anterior Inferior Iliac Spine, Anterior Superior Iliac Spine, Gluteal Tuberosity
20 Jan 2017
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Document Summary
Human centre of gravity - just anterior to 2nd sacral vertebra maintain standing position: Iliofemoral ligament (pelvis: binds femur to ilium, prevents hyperextension, cruciates (knee joint, lock knees to prevent upper body & femur from falling forward. Humans - 4 curves: cervical (7, thoracic (12) - kyphosis, lumbar (5) lordosis, sacral (5 fused) Apes - lack extreme curvature of spine & lumbar region greatly reduced. Monkeys - most have only kyphosis throughout the vertebral column. Prosimians & monkeys: ribs are less curved on vertebral end, transversely narrow rib cage, ribs hang downward in thorax, vertebral column forms dorsal edge. Apes (conical )& humans (barrel shaped rib cage: high degree of bending, ribs extend backward near vertebral column, ribs expand ventrally to articulate via costal cartilage with sternum. 5 sacral vertebrae (fused: positioned at a more acute angle to the lumbar vertebra, sacrum posterior & distal to hip joint narrower.
