Lobe (anatomy)

In anatomy, a lobe is a clear anatomical division or extension[1] 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.[2]

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Visceral surface of the liver showing the four lobes
Anatomical terminology

Interlobar ducts connect lobes and interlobular ducts connect lobules.

Examples of lobesEdit

Examples of lobulesEdit

Lobules of the mammary glands.


  1. ^ lobe Archived 2017-09-27 at the Wayback Machine at eMedicine Dictionary
  2. ^ SIU SOM Histology GI