Fossa ischiorectalis

The video tutorial provides an in-depth analysis of the rectal fossa, focusing on its anatomical structure, including the prismatic shape and the various muscles and fascia that form its boundaries. It discusses the contents of the fossa, such as fat lobules and neurovascular structures, and highlights the clinical significance, particularly the potential for infection and the formation of a horseshoe abscess.

What is the shape of the ischioanal fossa?

• Circular

• Prism-shaped

• Square

• Oval

Which muscle forms the roof of the ischioanal fossa?

• Sphincter internus

• Gluteus maximus

• Obturatorius internus

• Levator ani

What structures are contained within the ischioanal fossa?

• Only blood vessels

• Only nerves

• Fat lobules and neurovascular structures

• Only muscles

What is the Alcock canal also known as?

• Pudendal canal

• Ischioanal canal

• Levator canal

• Obturator canal

What is a potential complication of infection in the ischioanal fossa?

• Triangular abscess

• Linear abscess

• Circular abscess

• Horseshoe abscess