Skull
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The skull, or cranium, is typically a bony enclosure around the brain of a vertebrate. In some fish and amphibians, the skull is of cartilage. The skull is at the head end of the vertebrate.
Skull in situ
Human head skull from side
Anatomy of a flat bone – the periosteum of the neurocranium is known as the pericranium
Chimpanzee skull
Fibrous joint
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In anatomy, fibrous joints are joints connected by fibrous tissue, consisting mainly of collagen. These are fixed joints where bones are united by a layer of white fibrous tissue of varying thickness.
Fibrous joints
Sagittal suture.
Sagittal suture.
Sagittal suture.