part_of part of part of head mesenchyme head mesenchyme EHDAA2:0000732 UBERON:0005253 EFO:0003492 EMAPA:16098 Portion of primordial embryonic connective tissue of the developing head, consisting of mesenchymal cells supported in interlaminar jelly, that derive mostly from the mesoderm and contribute to head connective tissue, bone and musculature in conjunction with cranial neural crest cells. EHDAA:179 FMA:76622 cephalic mesenchyme VHOG:0000332 TAO:0000113 EMAPA_RETIRED:16269 cranial mesenchyme ZFA:0000113 embryonic tissue entire embryonic mesenchyme