PREGNANCY & DEVELOPMENT

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Across
  1. 3. Conceptus from fertilization through week 8.
  2. 4. Human chorionic gonadotrophin (hCG) secreted by __ cells.
  3. 5. Conceptus from week 9 through birth.
  4. 8. hCG levels rise until end of __ month.
  5. 10. hCG decline because __ begins to secrete progesterone & estrogen.
  6. 12. __ must occur for fertilization to occur.
  7. 13. Events that occur from fertilization until infant is born.
  8. 14. Primary germ layers is a __ tissues from which all body organs derive.
Down
  1. 1. Period time from last menstrual period until birth (280 days).
  2. 2. hCG prompts __ to continue secretion of progesterone and estrogen.
  3. 4. Labor consists of how many stages?
  4. 6. Endoderm & ectoderm are considered __.
  5. 7. Period of developing offspring.
  6. 9. __ is a process of giving birth to the baby that expel infant from uterus.
  7. 11. __ is a formation of placenta from embryonic & maternal tissues.