Type of Surgery
Last updated: 11/24/2009
There are a number of different types of bones in the body. This video explains how some of the various types of bones allow you to move and support the forces of walking and other activities.
A skull X-ray is a series of pictures of the bones of the skull. The nasal sinuses can also be viewed on a skull X-ray. Skull X-rays have largely been replaced by computed tomography (CT) scans.
X-rays are a form of radiation, like light or radio waves, that are focused into a beam, much like a flashlight beam. X-rays can pass through most objects, including the human body. X-rays make a picture by striking a detector that either exposes a film or sends the picture to a computer Dense tissues in the body, such as bones, block (absorb) many of the X-rays and look white on an X-ray picture. Less dense tissues, such as muscles and organs, block fewer of the X-rays (more of the X-rays pass through) and look like shades of gray on an X-ray. X-rays that pass only through air look black.
The most common spine procedure is Lumbar Disc laminectomy, with 185,651 performed in 2006. The second highest category is Cranial, with 592,443 procedures performed and the most common Cranial procedure is Supratentorial Craniotomy, with 55,578 performed.
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