The vanity of mesencephalic brain vesicle is: (A) Lateral ventricle, (B) Third ventricle, (C) Fouh ventricle, (D) Cerebral aqueduct
Answer is D. 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