part of medulla oblongata development hindbrain maturation medulla oblongata maturation medulla maturation biological_process GO:0021582 A developmental process, independent of morphogenetic (shape) change, that is required for the medulla oblongata to attain its fully functional state. The medulla oblongata lies directly above the spinal cord and controls vital autonomic functions such as digestion, breathing and the control of heart rate. myelencephalon maturation anatomical structure maturation