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Neuroanatomy - Cerebrospinal fluid

3 important questions on Neuroanatomy - Cerebrospinal fluid

There are cavities present inside the brain, which are filled with CSF. These cavities are derived from the neural tube, which cavity is derived from which part of the neural tube?

Cerebral hemisphere -> lateral ventricle
Diencephalon -> IIIrd ventricle
Mesencephalon -> sylvian aquaduct
Rhombencephalon -> IVrd ventricle
Medulla spinalis -> central canal

At which level does the CSF leaves the ventricles?

At the level of the fourth ventricle to the subarachnoid space

What is the shape of the IVrd ventricle?

Pyramid shaped, with 2 lateral and one medial apertures (openingen).

The medial aperture is also called Magendies' foramen.
The lateral aperture is also called the Luschkas' foramen. These extend out of the fourth ventricle and can be seen from the outside.

The question on the page originate from the summary of the following study material:

Introduction into the neurosciences

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