Cranium is made up of which compound???
Answers
Answer:
The human skull is generally considered to consist of twenty-two bones—eight cranial bones and fourteen facial skeleton bones. In the neurocranium these are the occipital bone, two temporal bones, two parietal bones, the sphenoid, ethmoid and frontal bones.
Explanation:
The human skull is generally considered to consist of twenty-two bones—eight cranial bones and fourteen facial skeleton bones. In the neurocranium these are the occipital bone, two temporal bones, two parietal bones, the sphenoid, ethmoid and frontal bones.
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The cranium :
The cranium (or skull) is a composite structure made up of the neurocranium, which surrounds and protects the brain, and the viscerocranium, which forms the skeleton of the face. The neurocranium can be subdivided into the cartilaginous part, which form base of the skull (or chondrocranium), and the membranous part, which forms cranial vault (or calvarium). The cranial vault consists mainly of the flat bones : paired frontal and parietal bones; the squamous parts of the temporal bone; and interparietal part of occipital bone. All of these bones are formed by intramembranous (IM) ossification. At birth, the bones of the cranial vault are unilaminar tables and, thereafter, the intervening diploe appears about the fourth year. Morphogenesis of the bones of the cranial vault is a lengthy developmental process initiated during early embryogenesis and completed during adulthood.
This review will primarily focus on prenatal development and growth of the human cranial vaults. Described below are the sections into which this review is divided.