Anatomy Cerebral aqueduct (Duct of Sylvius) – which is true: A 3 cms in length B Connects III. ventricle to IV ventricle C Connects III. ventricle to IV ventricle D Connects two lateral ventricles 💡 Explanation Cerebral aqueduct (Duct of Sylvius) - which is true: ✓ Correct Answer: B. Connects III. ventricle to IV ventricle