This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pelvis, Subject name: Anatomy
[{'content': 'Which of the following is not involved in formation of perineal body - \nSelect and explain. \nA. Superficial transverse perenei, B. Deep transverse perenei, C. Bulbocavemosus, D. Levator ani', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Buibocavernosuso Perineal body is the central point of the perineum. It is a fibromuscular node situated in the median plane, about 1-25 cm in front of the anal margin and close to the bulb of penis. Ten muscles of the perineum converge and interlace in the perineal body -Two unpaired :- (i) External anal sphincter, and (ii) Fibres of longitudinal muscle coat of anal canal.Four paired (i) Bulbospongiosus, (ii) Superficial transverse perenei, (iii) Deep transversus perenei, and (iv) Levator ani.o In females, sphincter urethrovaginalis is also attached here", 'role': 'assistant'}]