The vanity of mesencephalic brain vesicle is
The cerebral aqueduct, (aqueductus mesencephali, mesencephalic duct, syln aqueduct, or aqueduct of Sylvius), is within the midbrain. It contains cerebrospinal fluid (CSF), and connects the third ventricle to the fouh ventricle, located dorsal to the pons and ventral to the cerebellum Ref: guyton and hall textbook of medical physiology 12 edition page number: 841,842,843
Lateral ventricle
Third ventricle
Fouh ventricle
Cerebral aqueduct
Nervous system