Bones of the Cranium

Cranium

is made up of the following lowing eight bones, is the portion of the skull that encloses and protects the brain

Frontal Bone

the anterior portion of the cranium that forms the forehead, houses the frontal sinuses and forms the roof of the ethmoid sinuses, the nose, and part of the socket that protects the eyeball

Parietal Bone

two of the largest bones of the skull, together they form most of the roof and upper sides of the cranium

Occipital Bone

forms the back part of the skull and the base of the cranium

Temporal Bones

the sides and base of the cranium

External Auditory Meatus

the opening of the external auditory canal of the outer ear, located within the temporal bone on each side of the skull

Sphenoid Bone

an irregular wedge shaped bone at the base of the skull, makes contact with all of the other cranial bones and helps form the base of the cranium, side of the skull and the floors and sides of the eye sockets

Ethmoid Bone

light, spongy bone located at the roof and sides of the nose, separates the nasal cavity from the brain, and it also forms a portion of each orbit

Meatus

external opening of a canal

Orbit

the bony socket that surrounds and protects each eyeball

Auditory Ossicles

the three tiny bones located in each middle ear. know as the malleus, incus, and stapes