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frontal bone
Above: Frontal Bone, Frontal view, showing top of eye sockets and nasal cavity
occipital bone
Above: Occipital Bone from the inside. The Foramen Magnum is where the spinal cord passes through; the fossa labeled are where lobes of the brain fit.
temporal bone
Above: Temporal bone, outer right side showing features
sphenoid and parietal bones
Above: Sphenoid bone from the rear, with Parietal (3) and Temporal bones (4, mastoid process) attached. The sphenoid consists of the body of the sphenoid (1), its greater wings (2), the external pterygoid plate (5), and the internal pterygoid place (6). The frontal bone fits on the upper front part of this assembly (distant in the image) and the occipital bone fits on the rear (near in the image). The Ethmoid bone attaches to the front (distant) part of the Sphenoid.
ethmoid bone
Above: Ethmoid bone showing features

The diagrams above show details of the individual cranial bones. The frontal bone forms the forehead. The occipital bone forms the back of the head. The temporal bone is the part of the cranium around the ears. (The feature called the "temple" is actually a wing of the Sphenoid bone.) The hole above the external auditory process of the temporal bone is where the internal parts of the ear fit and the auditory nerve runs to the brain. The Parietal bone forms much of the side and top of the head. The Sphenoid bone is somewhat like a chassis that holds the other bones together and is at the base of the cranium. The Ethmoid bone is a very light bone that helps to form the nasal and other cavities.

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