Para zygosis

The condition of a double monster in which there is union of the trunks above the umbilicus. It includes xiphopagus, thoracopagus, and pleuropagus. Parenchyma. In biology, soft cellular ti ue, whether of plants (pith, pulp of leaves, etc.), or of animals, as the solid parts of a gland, any substance lying between ducts, ve els or nerves, connective ti ue, corpuscles or amorphous matter. In physiology, the secreting or functionating structure of an organ. P., Digesting, a ma of stellate, branched cells representing the alimentary canal in the so-called Acoela among platode worms. Food enters this ma directly through the mouth or esophagus.