ANT334H5 Lecture 2: Bass Reading for Week 2.docx
Document Summary
The occipital bone is connected by sutures with the two parietals (lambdoidal suture), the two temporals (along the mastoid margin), and the sphenoid (basilar suture ) This is the only bone of the skull that articulates with the postcranial skeleton. The articulation is through the occipital condyles with the first cervical vertebra (atlas) The largest hole of the skull, the foramen magnum, through which the spinal cord enters the skull, is located on the inferior surface between the occipital condyles. The major part of occipital condyles is located on the lateral portions: squamous posterior to the foramen magnum; the largest of the four parts, composed of the interparietal and supraoccipital portions. Cerebral surface: internal occipital crest is a median ridge that divides as it approaches the foramen magnum and becomes less defined. The following cranial bones are all flat: frontal, parietals, and temporals. In the postcranial skeleton the capula and innominates also have abroad flat surface.
