Human skull - Definition

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Upper part of the skeleton, the human skull bone is a complex set, whose the main functions is to protect the brain. Strongest area of the human body, the skull is approximately 1/8th the weight of the body. It is based on the cervical spine, whose the vertebrae allow movements. The human skull consists of the cranium (or neurocranium) and the facial (or viscerocranium). The latter contains fourteen bones all having a specific function, the zygomatic, maxillary, etc..