there are at least three cellular compartments involved in the process : i ) the plasma membrane , which contains secretagogue receptors and other transmembrane proteins , ii ) the cytoplasms , particularly in the region between the cell and secretory vesicle membranes , where molecules may influence interactions of the membranes , and iii ) the secretory vesicle itself .
C0010834
cytoplasms
C0886515
secretory vesicle