The bones of the human head and neck (UEB contracted)

By: Rnib

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Synopsis: This image shows the bones of the human head and neck seen from the side. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. The skull is at the top of the page and the neck goes from the centre of the page down to the bottom right of the page. The skull is facing to the left. In the left centre of the face on the left is the oval eye cavity. The cavity is much larger than the size of the eyeball because of the fatty tissue which surrounds and protects the eyeball. Down from the cavity are the upper and lower teeth. The lower teeth are set in the body of the jawbone (mandible) which goes to the right and then up at ninety degrees as the ramus. This splits near the skull, the part on the left tucks under the Zygomatic arch and has muscle attachments to move the jaw. The part to the right goes up and forms a joint with the skull that allows the jaw to move. To the right is the small oval opening to the auditory canal. The top and right of the image is the domed cranium. Down from the skull are seven cervical vertebrae of the neck and then the first four thoracic vertebrae of the chest. Each vertebra has the rectangular shaped body to the left and the neural spine to the right for back muscle attachment. The four thoracic vertebrae also have a facet for the rib at that level to attach to. They are rounded and partially overlie the neural spine of the vertebrae above it.

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