The amniotic cavity develops within the? a. Cytotrophoblast b. Hypoblast c. Syncytiotrophoblast d. Epiblast e. Zona pellucida The primitive yolk sac originates from the? a. Cytotrophoblast b. Syncytiotrophoblast c. Hypoblast d. Epiblast e. Amniotic wall The primitive streak develops in the? a. Cytotrophoblast b. Amniotic ectoderm c. Yolk sac d. Embryonic epiblast e. Syncytiotrophoblast Conjoined are most likely to occur in twins...

The morula often contains a. 2-4 cells b. 8-14 cells c. 16-32 cells d. 62-124 cells e. 180-360 cells Which of the following structures in NOT present in the early morula stage? a. Inner cell mass b. Blastocoele c. Yolk sac d. Trophoblast e. Zona pellucida Which of the following is the normal site of implantation? a. Infundibulum of the Fallopian tube b. Ampulla of the oviduct c. The cervical mucosa d. The uterine endometrium e. ...

1. When does the secondary oocyte complete its second meiotic division? a. Just before ovulation b. Immediately after ovulation c. When it reaches the ampulla of the oviduct d. When a sperm passes through the corona radiata e. When a sperm penetrates the oolemma 2. Capacitation of the sperms takes place in the a. Seminiferous tubules b. Rete testis c. Epididymis d. Vas deferens e. Female genital tract 3. Which one of the following is the usual site of...