The occipital bone forms the posterior (back) of the cranium.
Cranium is Sometimes referred to as the braincase due to its near proximity to the sense organs for sight, hearing, smell, and taste as well as other structures, the cranium is the portion of the skull that houses the brain. it is made up of facial bones and cranial bones, which surround and guard the brain (bones that form the eye sockets, nose, cheeks, jaw, and other parts of the face). The spinal cord attaches to the brain through a hole at the base of the skull.
The major bone of the occiput and the most posterior cranial bone is the occipital bone. Like all other cranial bones, it is regarded as a flat bone, and as such, its major role is either to provide protection or a broad surface for muscle attachment. The occipital bone is internally concave and outwardly convex. The basilar part, two lateral parts, and the squamous part make up its four sections.
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