gray matter https://upload.wikimedia.org/wikipedia/commons/d/d2/Spinal_nerve.svg EHDAA2:0003136 FMA:67242 gray mater Multi-tissue comprised of neurons, dendrites, axon terminals, glial cells, and capillaries.[TAO] MA:0001112 grey matter of neuraxis ZFA:0001681 EMAPA:37596 neuronal grey matter TAO:0002197 neuronames:2869 VHOG:0001768 HBA:4006 substantia grisea MESH:D066128 EHDAA2_RETIRED:0004658 NCIT:C32695 A nervous system structure composed primarily of nerve cell bodies (somas). May also include dendrites and the initial unmyelinated portion of axons. gray matter grisea uberon UBERON:0002020 Wikipedia:Gray_matter UMLS:C0018220 gray matter of neuraxis AEO:0001012 grey substance grey matter multi cell part structure