| 31. | The gastrovascular cavity itself is divided into a number of chambers by mesenteries radiating inwards from the body wall.
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| 32. | Many of the mesenteries project into the enteric cavity but some extend from the body wall to the central stomodaeum.
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| 33. | Volvulus occurs when a portion of the bowel twists around its mesentery, which can lead to obstruction and infarction.
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| 34. | Adult flatworms parasitize blood capillaries of either the mesenteries or plexus of the bladder, depending on the infecting species.
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| 35. | The septa are secreted by the mesenteries, and are therefore added in the same order as the mesenteries are.
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| 36. | The septa are secreted by the mesenteries, and are therefore added in the same order as the mesenteries are.
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| 37. | Polyps may also grow in the stomach, duodenum, spleen, kidneys, liver, mesentery and small bowel.
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| 38. | This is criss-crossed by various mesenteries which provide support for the pharynx and the rest of the gut.
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| 39. | The next lymph sac to appear is the unpaired retroperitoneal lymph sac at the root of the mesentery of the intestine.
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| 40. | Inside the body wall is the coelom which is divided by three longitudinal mesenteries which surround and support the internal organs.
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