Girish Mahajan

Anal sinuses

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Latin  Sinus anales
TA  A05.7.05.006
Dorlands /Elsevier  12738546
FMA  76584
Anal sinuses

The anal sinuses (rectal sinuses) are furrows in the anal canal, that separate the anal columns from one another. The anal sinuses end below in small valve-like folds, termed anal valves.

References

Anal sinuses Wikipedia