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Gluteal cleft)
| Gluteal cleft |
 |
| Latin |
crena analis; crena ani; crena interglutealis |
The intergluteal cleft, also known as the natal cleft or more commonly in the US, the butt crack, is the groove or crack between the buttocks that runs from just below the sacrum to the perineum, so named because it forms the visible border between the external rounded protrusions of the Gluteus maximus muscles. The butt crack is above the location of the anus.
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