part of part of located in located in hyaloid cavity hyaloid vascular plexus EMAPA:17303 UBERON:0005607 MA:0001283 EHDAA:5703 FMA:312298 EHDAA2:0000790 hyaloid vascular system VHOG:0000442 XAO:0004157 vascular plexus craniocervical region vein