In anatomy, a lobe is a clear anatomical division or extension of an organ (as seen for example in the brain, lung, liver, or kidney) that can be determined without the use of a microscope at the gross anatomy level. This is in contrast to the much smaller lobule, which is a clear division only visible under the microscope.
Visceral surface of the liver showing the four lobes
Interlobar ducts connect lobes and interlobular ducts connect lobules.
Examples of lobes
- The four main lobes of the brain
- The three lobes of the human cerebellum
- The two lobes of the thymus
- The two and three lobes of the lungs
- The four lobes of the liver
- The renal lobes of the kidney