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.
1 Succenturiate where an accessory cotyledon forms separately and is attached to the main placenta. 2  The placenta may be Bipartite or divided into two lobes but connected with blood vessels. 3  The placenta may be Annular or ring shaped.ccessory types and abnormal placenta. 1  Succenturiate where an accessory cotyledon forms separately and is attached to the main placenta. 2  The placenta may be Bipartite or divided into two lobes but connected with blood vessels.