| V1 TP V6 | ventral 1 to ventral 6 [chest leads in ECG] |
|---|---|
| PNET | Primitive Neuro-Ectodermal(-Epithelial) Tumor |
| HbP | primitive hemoglobin |
| PNET | peripheral neuroepithelioma; primitive neuroectodermal tumor |
| RVG | right ventral glutens [muscle]; right visceral ganglion |
| PPNET | Peripheral primitive neuroectodermal tumor |
|---|---|
| PNET | Primitive Neuroectodermal Tumor |
| PTA | Primitive trigeminal artery |
| PHSC | primitive hematopoietic stem cell |
| PS | primitive streak |
| mesentery | 1. <anatomy> The membranes, or one of the membranes (consisting of a fold of the peritoneum and inclosed tissues), which connect the intestines and their appendages with the dorsal wall of the abdominal cavity. The mesentery proper is connected with the jejunum and ilium, the other mesenteries being called mesoccum, mesocolon, mesorectum, etc. 2. <zoology> One of the vertical muscular radiating partitions which divide the body cavity of Anthozoa into chambers. Origin: Gr, + intestine: cf. F. Mesentere. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| mesentery of appendix | The short mesentery of the appendix lying behind the terminal ileum, in which the appendicular artery courses. Synonym: mesenteriolum processus vermiformis, mesentery of appendix. (05 Mar 2000) |
| mesentery of caecum | <anatomy> The fold of peritoneum attached to the caecum. The part of the mesocolon, supporting the caecum, that occasionally persists when the ascending colon becomes retroperitoneal during foetal life. Synonym: mesentery of caecum. Origin: meso-+ caecum (05 Mar 2000) |
| mesentery of lung | The reflection of pleura surrounding the root of the lung (including the pulmonary ligament inferiorly) as parietal pleura becomes continuous with the visceral pleura of the lung. Synonym: mesentery of lung. (05 Mar 2000) |
| mesentery of sigmoid colon | See: mesocolon. (05 Mar 2000) |
| mesentery of transverse colon | See: mesocolon. (05 Mar 2000) |
| small bowel disease involving mesentery | <radiology> Lymphoma, metastasis, retractile mesenteritis (12 Dec 1998) |
| urogenital mesentery | The segment of the urogenital ridge that extends from the mesonephros to the diaphragm; becomes the suspensory ligament of the ovary. Synonym: urogenital mesentery. (05 Mar 2000) |
| primitive | Undeveloped or in early stages of development, undifferentiated. (16 Dec 1997) |
| primitive aorta | The paired aortic primordia in young embryos. (05 Mar 2000) |
| primitive chorion | The chorion before its villi are well formed. Synonym: previllous chorion. (05 Mar 2000) |
| primitive costal arches | Arch's formed in the thoracic region of the vertebral column in the embryo from the costal processes or costal elements which give rise to the ribs. (05 Mar 2000) |
| primitive erythroblast | <cell biology> Large cell with euchromatic nucleus found in mammalian embryos. In the mouse, the cells are located in the yolk sac and are responsible for early production of erythrocytes with foetal haemoglobin. (18 Nov 1997) |
| primitive furrow | The median depression in the primitive streak flanked by the primitive ridges. Synonym: primitive furrow. (05 Mar 2000) |
| primitive groove | The median depression in the primitive streak flanked by the primitive ridges. Synonym: primitive furrow. (05 Mar 2000) |
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