What is the diameter size of a vesicle?

A vesicle is defined as a small, fluid-filled sac in the body, often found in cell biology or medical terminology. The diameter of a vesicle is characterized by being less than 1 cm. This size is significant because it allows vesicles to effectively transport materials within cells and facilitate cellular processes such as secretion and endocytosis. Understanding this size distinction helps in differentiating vesicles from other structures, like cysts or tumors, which may have larger diameters. This clarity in definitions is crucial for anyone studying or working in the medical or scientific fields, as it aids in accurate communication and diagnosis.