peritoneal, peritoneal (per"itoneal)

[= F. périt onéal = Pg. peritoneal; as peritoneum, per it onæum, + -al.] Of or pertaining to the peritoneum.-Peritoneal cavity, the cavity inclosed by the peritoneum. - Peritoneal fever. See fever1. Peritoneal fo æ, pocket-like rece es of the per it one um, such as Dougla 's pouch, the recto vesical pouch, etc. Also called peritoneal rece es. - Peritoneal ligaments, certain reflections of the peritoneum from the walls of the abdomen or pelvis to the viscera, such as the ligaments of the liver, spleen, uterus, and bladder. - Peritoneal sac, in echinoderms, that part of the primitive vasoperitoneal vesicle of the embryo which gives rise to the peritoneum. peritoneum, per it onæum (peri-to-nē'um), n. [= F. péritoine = Sp. per itóneo = Pg. It. peri toneo, LL. per it onæum, peritoneum, surface, attached to the subjacent structures by the peritoneal areolar ti ue, and forming a closed sac, except in the female, where it is continuous with the mucous membrane of the Fallopian tubes, or oviducts. From the walls of the abdominal and pelvic cavi ties it is reflected at various places over the viscera, which it serves to invest and at the same time hold in position plicatures. These by folds folds or duplicatures are of various kinds, constituting the mesentery), connect certain parts of the in canal with the posterior abdominal walls; others form the SO called ligaments of the liver, spleen, stomach, kidneys, IMG:content-2723.png:[graphic][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed] broad ligaments Peritoneum of Human Female, in longitudinal of the uterus, section, somewhat diagrammatical. and the suspen sory ligament of the bladder; still others form the omenta, attached to the greater and le er curvatures of the stomach. That part which lines the abdominal and pelvic walls is called the parietal or external peritoneum; that which more or le completely invests the viscera, the visceral or internal. The cavity of the peritoneum is divided into two unequal parts by the constriction at Winslow's foramen; of these, the upper posterior one, lying back of and below the stomach and liver, is called the le er cavity; the greater cavity lies in front and below. In vertebrates below mammals, in which there is no diaphragm, the peritoneum and the pleura (which is the corresponding thoracic serous membrane) are thrown into one, lining the whole pleuroperitoneal cavity and investing its contained viscera. The name peritoneum is extended to various similar or analogous, though not nece arily homologous, membranes or tunics which line the body-cavity of many different invertebrates. 2. In brachiopods, an investment of the alimentary canal, by which the latter is suspended in the per i visceral cavity as by a mesentery. Special folds form the gastroparietal and i leo parietal bands, respectively connecting the stomach and intestines is now generally called the me so sternum , a name which middle coxӕ. with the parietes. IMG:content-2724.png:[blocks in formation] IMG:content-2725.png:[blocks in formation] In bot., horizontal in the pericarp, as a seed; 2t. In zoöl., a periwinkle. also, having the radicle pointing toward the side of the pericarp, as an embryo. [Rare.] per i typhlitic (per"i-tif-lit'ik), a. [ perityphlitis (per"i-tif-li'tis), n.. [NL., Gr. περί, around, + τυφλός, blind (with ref. to the cæcum or blind gut), + -it is.] 1. Inflammation of the cæcum, appendix, and connective ti ue behind the cæcum.-2. Inflammation of the peritoneum covering the cæcum and appendix. per i uterine (per-i-u'te-rin), a. [