<prompt> Which of the following is not involved in formation of perineal body -Superficial transverse pereneiDeep transverse pereneiBulbocavemosusLevator ani  <response>: 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 