cell adhesion cell communication system process regulation of biological quality anatomical structure development cell adhesion cell communication system process regulation of biological quality anatomical structure development cell adhesion cell communication system process regulation of biological quality anatomical structure development cell adhesion cell communication system process regulation of biological quality anatomical structure development cell adhesion cell communication system process regulation of biological quality anatomical structure development cell adhesion cell communication system process regulation of biological quality anatomical structure development cell adhesion cell communication system process regulation of biological quality anatomical structure development cell adhesion cell communication system process regulation of biological quality anatomical structure development cell adhesion cell communication system process regulation of biological quality anatomical structure development cell adhesion cell communication system process regulation of biological quality anatomical structure development cell adhesioncell adhesion cell communicationcell communication system processsystem process regulation of biological quaregulation of biological quality anatomical structure developanatomical structure development ion binding ion binding ion binding ion binding ion binding ion binding ion binding ion binding ion binding ion binding ion bindingion binding cell organelle extracellular region membrane synapse cell organelle extracellular region membrane synapse cell organelle extracellular region membrane synapse cell organelle extracellular region membrane synapse cell organelle extracellular region membrane synapse cell organelle extracellular region membrane synapse cell organelle extracellular region membrane synapse cell organelle extracellular region membrane synapse cell organelle extracellular region membrane synapse cell organelle extracellular region membrane synapse cellcell organelleorganelle extracellular regionextracellular region membranemembrane synapsesynapse