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# Superior and Posterior Views of the Skull **(a) Superior View** The superior view of the skull shows four of the cranial bones: - Frontal bone - Parietal bones (left and right) - Occipital bone The articulation between the frontal and parietal bones is the **coronal suture**, so-named because...

# Superior and Posterior Views of the Skull **(a) Superior View** The superior view of the skull shows four of the cranial bones: - Frontal bone - Parietal bones (left and right) - Occipital bone The articulation between the frontal and parietal bones is the **coronal suture**, so-named because it runs along a coronal plane. The **sagittal suture** connects the left and right parietal bones along the midline of the skull. Along the posterior third of the sagittal suture is either a single **parietal foramen** or paired **parietal foramina** which serve as a passageway for small veins between the brain and the scalp. The lateral surface of each parietal bone exhibits a rounded, smooth area called the **parietal eminence**. The superior part of the **lambdoid suture** represents the articulation of the occipital bone with both parietal bones. **(b) Posterior View** The posterior view of the skull shows a portion of the: - Occipital - Parietal - Temporal bones as well as the entire **lambdoid suture** between the occipital and parietal bones. Within the lambdoid suture, there may be one or more **sutural bones** which are bones completely within a suture. - **External occipital protuberance** is a prominence on the posterior aspect of the skull. - **Superior and inferior nuchal lines** intersect the external occipital protuberance.