|The Breast: cross-section scheme of the mammary gland.
1. Chest wall
2. Pectoralis muscles
6. Lactiferous duct
7. Fatty tissue
In anatomy, a lobe is a clear anatomical division or extension of an organ (such as the brain, the breast or the kidney) that can be determined without the use of a microscope at the gross anatomy level. This is in contrast to a lobule, which is a clear division only visible histologically.
In practice, this division can be somewhat subjective. For example, it can be difficult to precisely distinguish between an interlobar duct and an interlobular duct. Furthermore, the distinction is not universally accepted and some sources simply consider a lobule to be a small lobe.
Examples of lobes/lobules
- The four lobes of the human cerebral cortex
- The three lobes of the human cerebellum
- the earlobe
- lobes of the lung
- the liver
- the kidney
- the testicular lobules
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