HLTH109 Lecture Notes - Lecture 19: Costal Cartilage, Thoracic Vertebrae, Ossification
26 Oct 2018
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16th of october 2018: bones of the back: vertebral column curvature, normal curves: Sacral = concave and primary: cervical and thoracic. The cervical segments have more range of motion because they are not restricted by surrounding anatomical structures. For example, the thoracic region has limited range of motion because the ribs are attached to the thoracic vertebra: thoracic cage: 12 pairs of ribs that have costal cartilages. Sternum = also known as the breast bone. Curved, flat bones which are light but highly resilient: divisions: Attached directly to the sternum through their own costal cartilages. Their cartilage are attached to the sternum which is immediately superior. Do not connect to the sternum at all: atypical ribs: 1st rib = shortest, widest, most sharply curved with a single facet on its head. 2nd rib = thinner, less curved, longer than the 1st rib. 10th-12th rib = one facet on their heads.
