‘æ‡V”]Žº�A(–¬—�‘p) �« ƒ‚ƒ“ƒ��[�E (Monro's foramen) �« �« ’†”]�…“¹ (cerebral aqeduct) �« �« ‘æ‡W”]Žº�A(–¬—�‘p) �« ƒ}ƒWƒƒƒ“ƒfƒB�E (Magandie's foramen) ƒ‹ƒVƒ…ƒJ�E (Lushka's foramen) �« ƒNƒ‚–Œ‰º�o (subaracnoid space) �« �« ƒNƒ‚–Œè÷—± (aracnoidal granulations) �« �ã–î�ó�Ö¬“´