mesopneumonium
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Mesentery — A fold of tissue which attaches organs to the body wall. The word mesentery usually refers to the small bowel mesentery which anchors the small intestine to the back of the abdominal wall. Blood vessels, nerves, and lymphatics branch through the… … Medical dictionary
isthmus — 1. A constriction in the embryonic neural tube delineating the anterior portion of the rhombencephalon, the future metencephalon, form the more rostrally located mesenephalon. 2. SYN: rhombencephalic i.. [G. isthmos] i. of aorta SYN … Medical dictionary