%% Begin Waypoint %% - [[ischioanal fat]] - [[pudendal canal]] %% End Waypoint %% ### Description and Features: > [!multi-column] >> [!blank] >> - a paired, triangular-shaped space lateral to the [[anal triangle]], with an apex directed anteromedially to the [[pubic symphysis]] > >> [!blank] >> ![[ischioanal fossa.png]] *This video is a great resource to understand how the ischioanal fossa and the other organs/muscles of the pelvis are oriented in 3D.* <iframe width="560" height="315" src="https://www.youtube.com/embed/K4K3a8UnS5M?si=X3l1O_FLAQBU1LgS" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe> ### Borders: - lateral = [[obturator internus muscle]] - medial = [[anus]] - superior = [[levator ani muscle]] - anterior = [[perineal membrane]] and [[muscles of the perineum]] - posterior = [[sacrotuberous ligament]] and [[gluteus maximus muscle]] ### Function(s): - ### Innervation: - ### Blood Supply: - ### Lymphatic Drainage: - ### Clinical Significance: - an [[anal abscess|ischioanal abscess]] is a painful infection in the ischioanal fossae, most commonly caused by inflammation of the anal glands (these infections can be "horseshoe shaped" because the ischioanal fossae communicate posteriorly) ### Notes: -