MEDICAL BODY SCANS / SCIENCE PHOTO LIBRARY MEDICAL BODY SCANS / SCIENCE PHOTO LIBRARY
This is a coronal (frontal view) cross sectional MRI image of the head through the brain stem (showing cavernous malformations) and fronto-parietal regions of both cerebral hemispheres. At this level you see two cavities filled with dark material near the center of the image. These are the lateral ventricles which are filled with cerebral spinal fluid (CSF). There are two main types of brain tissue, gray matter (which contains the neuronal cell bodies and is the darker of the brain tissue shown) and white matter (which is composed of axonal fibers). The brainstem is in the middle of the lower part of the image.
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