The cranium skull is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the brain case , or cranial vault Figure 6. The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws. The rounded brain case surrounds and protects the brain and houses the middle and inner ear structures.
Skull Facial Bones
Facial bones of the Skull • Anatomy & Function
The human skull is the part of the skeleton that supports the structures of the face and forms a cavity for the brain. The skull supports the musculature and structures of the face and forms a protective cavity for the brain. The skull is formed of several bones which, with the exception of the mandible, are joined together by sutures—synarthrodial immovable joints. The adult human skull is comprised of twenty-two bones which are divided into two parts of differing embryological origin: the neurocranium and the viscerocranium. The neurocranium forms the cranial cavity that surrounds and protects the brain and brainstem. The neurocranium is formed from the occipital bone, two temporal bones, two parietal bones, the sphenoid, ethmoid and frontal bones; they are all joined together with sutures. Components of neurocranium : Neurocranium consists of 8 parts: frontal, sphenoid, ethmoid, occipital, 2 temporal, and 2 parietal bones.
The facial bones comprise a set of bones that make up the face. Collectively the facial bones are also known as the viscerocranium or splanchnocranium 1,2. A suture is formed where two or more of the bones except for the mandible articulate with each other at a fibrous joint.
The skull is a bony structure that supports the face and forms a protective cavity for the brain. It is comprised of many bones, which are formed by intramembranous ossification, and joined by sutures fibrous joints. The bones of the skull can be considered as two groups: those of the cranium which consist of the cranial roof and cranial base and those of the face.