This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2019, Subject name: Anatomy
Which of the following are true regarding levator ani EXCEPT? 
Select and explain. 
A. Levator ani muscle is attached at pelvic brim, B. Pubococcygeus and iliococcygeus are components, C. Fibres are directed posterior and medial, D. Suppos pelvic viscera
A: Levator ani muscle is attached at pelvic brim
Answer: A: Levator ani muscle is attached at pelvic brim 
Explanation: Levator ani: Two levator ani muscles originate from each side of pelvic wall, course medially, inferiorly & join together in midline Levator ani muscle include 3 collections of muscle fibers- Pubococcygeus + Puborectalis + Iliococcygeus muscle Levator ani muscles help suppo pelvic viscera & maintain closure of rectum & vagina, maintain angle b/w rectum & anal canal. They are innervated by branches from anterior ramus of S4 and by branches of pudendal nerve (S2 to S4) It is attached to pubis & obturator fascia. Levator ani + ischio-coccygeus form - pelvis