RID13786 ventricular system of brain

RID13787 region of ventricular system of brain 1

RID13818 central canal of neuraxis

RID13819 central canal proper of spinal cord

RID13820 medulla part of central canal

RID34527 segment of ventricular system of brain 11

RID7362 central canal of spinal cord

RID7368 terminal ventricle