Ischioanal fossa
Ischioanal Fossa
The Ischioanal Fossa (pronounced: is-kee-oh-anal fossa), also known as the Ischiorectal Fossa, is an important anatomical structure in the human body.
Etymology
The term "Ischioanal Fossa" is derived from the Latin words "ischium" meaning hip and "anal" referring to the anus. The term "fossa" is also Latin, meaning a pit or depression.
Definition
The Ischioanal Fossa is a fat-filled space located on each side of the anus. It is wedge-shaped, with the base presenting towards the perineum and the apex directed towards the line of the ischial spine.
Anatomy
The Ischioanal Fossa is bounded laterally by the obturator internus muscle and the ischium, medially by the levator ani and the anal canal, superiorly by the pelvic diaphragm, and inferiorly by the skin of the perineum.
Clinical Significance
The Ischioanal Fossa is clinically significant as it is a potential space for the spread of infections from the perineal region. Infections in this area can lead to a condition known as Ischioanal abscess, which can be extremely painful and may require surgical intervention.
Related Terms
- Ischioanal abscess
- Perineum
- Anal canal
- Pelvic diaphragm
- Obturator internus muscle
- Levator ani
- Ischial spine
External links
- Medical encyclopedia article on Ischioanal fossa
- Wikipedia's article - Ischioanal fossa
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