precardinal
Look at other dictionaries:
precardinal veins — paired venous trunks in the embryo cranial to the heart; called also anterior cardinal v s … Medical dictionary
cardinal veins anterior — precardinal v s … Medical dictionary
human embryology — ▪ biology Introduction the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth. The human body, like that of most animals, develops from a single cell produced by the union of… … Universalium
animal development — Introduction the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by … Universalium
cardinal veins — two pairs of veins in the embryo that carry blood from the head (anterior cardinal veins) and trunk (posterior cardinal veins); they unite to form the common cardinal vein, which drains into the sinus venosus of the heart. * * * embryonic vessels … Medical dictionary
primary head veins — vessels alongside the embryonic brain that continue into the precardinal veins … Medical dictionary
