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PDQ Cancer Information Summaries [Internet]. Bethesda (MD): National Cancer Institute (US); 2002-.

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PDQ Cancer Information Summaries [Internet].

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Anatomy of the brain; the right panel shows the supratentorial area (the upper part of the brain) and the posterior fossa/infratentorial area (the lower back part of the brain). The supratentorial area contains the cerebrum, lateral ventricle, third ventricle, choroid plexus, hypothalamus, pineal gland, pituitary gland, and optic nerve. The posterior fossa/infratentorial area contains the cerebellum, tectum, fourth ventricle, and brain stem (pons and medulla). The tentorium and spinal cord are also shown. The left panel shows the cerebrum, ventricles (fluid-filled spaces), meninges, skull, cerebellum, brain stem (pons and medulla) and spinal cord.

Anatomy of the brain. The supratentorial area (the upper part of the brain) contains the cerebrum, lateral ventricle and third ventricle (with cerebrospinal fluid shown in blue), choroid plexus, hypothalamus, pineal gland, pituitary gland, and optic nerve. The posterior fossa/infratentorial area (the lower back part of the brain) contains the cerebellum, tectum, fourth ventricle, and brain stem (pons and medulla). The tentorium separates the supratentorium from the infratentorium (right panel). The skull and meninges protect the brain and spinal cord (left panel).

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