Levator ani muscle

The video tutorial discusses the levator ani, a key component of the pelvic diaphragm. It is composed of three muscles: puborectalis, pubococcygeus, and ileocolic sygehus. These muscles form an AV-shaped structure that supports pelvic organs and controls the urogenital and anal hiatuses. The levator ani is innervated by the sacral plexus and pudendal nerve, playing a crucial role in urinary and bowel continence by stabilizing organs and regulating openings during urination and defecation.

Explain the significance of the urogenital and anal hiatuses formed by the levator ani.

What is the role of the sacral plexus in the innervation of the levator ani?