cell layer septum pellucidum true pellucidum NCIT:C33536 UMLS:C0036700 BIRNLEX:1315 BTO:0003448 FMA:61844 septum pellucidum of telencephalic ventricle DHBA:12098 UBERON:0004714 BAMS:SptP MESH:D012688 MA:0002979 septum gliosum BAMS:spt A triangular double membrane, consisting of glial cells and fibers (Heimer, 1996) separating the anterior horns of the lateral ventricles of the brain. It is situated in the median plane and bounded by the corpus callosum and the body and columns of the fornix. supracommissural septum septal pellucidum septum lucidum lateral septum http://braininfo.rprc.washington.edu/centraldirectory.aspx?ID=256 uberon