Misc. Vocabulary: Membrane, viscera/viscus, visceral layer, parietal layer, serous membranes, mediastinum (in thoracic cavity), pericardial fluid, pleural fluid, visceral/parietal peritoneum, peritoneal fluid, retroperitoneal position, intraperitoneal organs, mesentery, serosa, posterior mesentery, anterior mesentery, mesocolon, greater omentum, lesser omentum, potential spaces, lumen