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The perineal body (or central tendon of perineum) is a pyramidal fibromuscular mass in the middle line of the perineum at the junction between the urogenital triangle and the anal triangle. In males, it is found between the bulb of the penis and the anus ; in females, it is found between the vagina and anus, and about 1.25 cm (0.49 in) in front ...
The inner layer, the visceral peritoneum, is wrapped around the visceral organs, located inside the intraperitoneal space for protection. It is thinner than the parietal peritoneum. The mesentery is a double layer of visceral peritoneum that attaches to the gastrointestinal tract. There are often blood vessels, nerves, and other structures ...
The peritoneal cavity is widely used in intraperitoneal injections to administer chemotherapy drugs, [5] [6] and is also utilized in peritoneal dialysis. [7] An increase in capillary pressure in the abdominal organs can cause fluid to leave the interstitial space and enter the peritoneal cavity, resulting in a condition called ascites.
Primarily retroperitoneal, meaning the structures were retroperitoneal during the entirety of development: urinary adrenal glands; kidneys; ureter; circulatory aorta; inferior vena cava; digestive. anal canal; Secondarily retroperitoneal, meaning the structures initially were suspended in mesentery and later migrated behind the peritoneum ...
It is lined by peritoneum and at its base is the rectoprostatic fascia (Denonvillier's fascia). When a man is upright or supine, it is the lowest part of his peritoneal cavity. [3] It may contain parts of the ileum (lower small intestine) and the sigmoid colon. [2] In women, the uterus lies between the rectum and the bladder.
vs. Vesicula seminalis: W. Left Wolffian body: W. Scattered remains of the Wolffian body, constituting the organ of Giraldès, or the paradidymis of Waldeyer. w, w. Right and left Wolffian ducts: W. Scattered remains of Wolffian tubes near it (paroöphoron of Waldeyer); dG.
Anatomy of the human anus. Frontal section. The anus is the final part of the gastrointestinal tract, and directly continues from the rectum, passing through the pelvic floor. The top and bottom of the anus are surrounded by the internal and external anal sphincters, two muscular rings which control defecation.
Peritoneal recesses (or peritoneal gutters) are the spaces formed by peritoneum draping over viscera. [1] The term refers mainly to four spaces in the abdominal cavity; the two paracolic gutters and the two paramesenteric gutters. There are other smaller recesses including those around the duodenojejunal flexure, cecum, and the sigmoid colon.