The zygote undergoes mitotic cellular division (clevage), resulting in the formation of smaller cells. What is the zygote called at each of these changes (day 1, day 3 and day 4)? {Ans: Day 1 - blastomere Day 3 - morula Day 4 - blastocyst}What is cervical dilatation? {Ans: The external os expands from 0-10cm. Uterine actions and counter pressure from the membranes, and the presenting part, cause the fundus to respond via contraction and retraction.}Where is sperm made? {Ans: Seminiferous tubules in the testes}Name the 3 innominate bones of the pelvis. {Ans: Ilium Ischium Pubis}Name 3 types of abnormal placenta. {Ans: Battledore insertion - cord inserted on the edge Velementous insertion - cord inserted through the membranes, some distance from the placenta Succenturiate lobe - a lobe which is separated from the main body but connected by the placental blood vessels Circumuallate - opaque ring Bipartite - two separate lobes and a bifurcated cord}Which vessel connects the umbilical vein to the IVC? {Ans: Ductus venosus.}What are striae gravidarum? {Ans: Stretch marks.}Identify the 3 types of lochia following birth. {Ans: Rubra -red, mainly blood products. Serosa - pink, serum. Alba - white, leukocytes,