RID15530 cavity of lateral ventricle 2

RID15533 subdivision of cavity of lateral ventricle 8

RID15558 cavity of third ventricle

RID15559 subdivision of cavity of third ventricle 7

RID15561 cavity of cerebral aqueduct

RID15562 cavity of fourth ventricle

RID15566 subdivision of cavity of fourth ventricle 5

RID15567 cavity of brain

RID15568 lumen of central canal of spinal cord

RID15848 cavity of subdivision of third ventricle