Anatomy and Cell Biology 3319 Lecture Notes - Lecture 9: Osteoporosis, Eustachian Tube, Articular Processes
23 Jun 2016
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When you"re born you don"t have spinal curvatures as you are in a ball/fetal position so the spine is just a c. During first year of life you start to develop these curvatures. First 2 of cervical vertebrae are the atlas and axis, single unique bones. Lumbar vertebrae are massive which doesn"t have ribs but carry a lot of weight. If you look at spine from front (anterior view), it"s straight and provides the longitudinal axis for. Vertebral column: anterior view: skull rests upon c1 (atlas) From the side we see curvature: concavity, convex, concavity, convex. Naturally occurring curvatures, all adapted to provide a spring to the back. Primary curvatures; existent in the spine with the baby is born. Fetus is in fetal position and spine is a small c, with one curvature (the primary curvature) as a baby grows older (in newborn) it changes a bit, and by the time you are 4 you develop.
