small or compact enough to fit or be used on a desk: a desktop calendar. noun. 2. the surface of a desk.
Implantation: A circumvallate placenta is simply a 'accident of implantation and formation. Serendipity often causes some of the medical aberrations that are often seen. Causes of circumvallate placenta - What is a partial circumvallate placenta? What causes it? Implantation. A circumvallate placenta is simply a 'accident of implantation and formation. Serendipity often causes some of the medical aberrations that are often seen.
placenta spuÂ´ria an accessory portion without blood vessels connecting it with the main placenta. placenta succenturiaÂ´ta an accessory portion with an artery and a vein connecting it with the main placenta. (1)âAccessory lobe (of placenta).fter birth of the infant the placenta is cast off from the uterus and expelled via the birth canal. placenta accreÂ´ta one abnormally adherent to the myometrium, with partial or complete absence of the decidua basalis.