Category - cumshot
1 sacral nerves (a s2, b s3, c s4), 2 pudendal nerve, 3 levatory nerves, 4 inferior rectal nerves, 5 somatic innervation of the pelvic floor and external anal sphincter, 6 sympathetic trunk, 7 lumbar splanchnic nerves, 8 grey communicans nerve, 9 superior hypogastric plexus, 10 hypogastric nerves, 11 sacral splanchnic nerves, 12 inferior hypogastric plexus, 13 pelvic splanchnic nerves. The pelvic floor is a dome-shaped muscular sheet separating the pelvic cavity above from the perineal region below. This cavity encloses the pelvic viscera - bladder, intestines, and uterus(in females). anatomy is described for the different colonic segments, rectal ampulla, upper and lower anal canal, corpus cavernosum recti, proctodeal glands, anal sphincter complex, and pelvic floor muscles. The anatomic structures mediating anal continence are highlighted. It attaches to the walls of the lesser pelvis, separating the pelvic cavity from the perineum inferiorly (region which includes the genitalia and anus). In order to allow for urination and defecation, there are a few gaps in the pelvic floor. Pelvic floor muscles have two major functions they provide 1 support or act as a floor for the abdominal viscera including the rectum and 2 constrictor or continence mechanism to the urethral, anal and vaginal orifices (in females). Here, we will discuss the relevance of pelvic floor to the anal opening and closure function, and discuss new findings with regards to the. The pelvic floor separates the pelvic cavity above from the perineal region (including perineum) below. Because, to accommodate the birth canal, a females pelvic cavity is larger than a males, the pelvic floor tends to be considered a part of female anatomy, but males have an equivalent pelvic floor. After a brief technical description of mri, the anatomy of anal sphincter, rectum and pelvic floor is described. The anatomy of the anorectum and pelvic floor is well demonstrated at t2 weighted turbo spinecho sequences and all figures in this article concern this type of mri sequence. Pubococcygeus muscle arising from the pubis and its superior ramus. It passes posteriorly to insert into the anococcygeal body between the coccyx and the anal canal. Its function include pulling the coccyx forward, elevating the pelvic organs and compressing the rectum and vagina. The anatomy of the pelvic floor was investigated in detail using the 0. 5-t mri scanner (philips nt5, philips medical systems, best, the netherlands) equipped with an endoanal coil. The rectum is the most distal segment of the large intestine, and has an important role as a temporary store of faeces. It is continuous proximally with the sigmoid colon, and terminates into the anal canal.