- Source: Anal triangle
The anal triangle is the posterior part of the perineum. It contains the anus in mammals.
Structure
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
Contents
Some components of the anal triangle include:
Ischioanal fossa
Anococcygeal body
Sacrotuberous ligament
Sacrospinous ligament
Pudendal nerve
Internal pudendal artery and internal pudendal vein
Anal canal
Muscles
Sphincter ani externus muscle
Gluteus maximus muscle
Obturator internus muscle
Levator ani muscle
Coccygeus muscle
Additional images
See also
Perineum
Urogenital triangle
References
External links
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)
Kata Kunci Pencarian:
- Kendra Lust
- Ular segitiga-merah
- Riley Reid
- Jade Marcela
- Tindik kelamin
- Sasha Grey
- Kromium
- Gianna Michaels
- Yuri
- Veronica Avluv
- Anal triangle
- Anal canal
- Urogenital triangle
- Perineum
- Vulva
- Ischioanal fossa
- Pelvic floor
- Triangle piercing
- Anal piercing
- Glossary of medicine
