Anal_triangle
Anal triangle
Posterior part of the perineum
The anal triangle is the posterior part of the perineum. It contains the anal canal.
Quick Facts Details, Identifiers ...
Anal triangle | |
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Details | |
Identifiers | |
Latin | regio analis |
TA98 | A01.2.06.002 |
TA2 | 278 |
FMA | 20347 |
Anatomical terminology |
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The anal triangle can be defined either by its vertices or its sides.
- Vertices
- one vertex at the coccyx bone
- the two ischial tuberosities of the pelvic bone
- Sides
- perineal membrane (posterior border of perineal membrane forms anterior border of anal triangle)
- the two sacrotuberous ligaments
Some components of the anal triangle include:[1]
- Articulations of pelvis. Posterior view.
- The superficial branches of the internal pudendal artery.
- Daftary, Shirish; Chakravarti, Sudip (2011). Manual of Obstetrics, 3rd Edition. Elsevier. pp. 1-16. ISBN 9788131225561.
- Anatomy photo:41:01-0202 at the SUNY Downstate Medical Center - "The Female Perineum: Boundaries of the Female Perineum"
- perineum at The Anatomy Lesson by Wesley Norman (Georgetown University) (perineumboundaries)