Conception to Birth
by Emma Santis
1. Ocyte
2. Sperm
3. Egg inseminated
4. 24 hours
4.1. Baby first division
4.2. Fertilized ovum divides
4.2.1. It divides a new, every 12-15 hours
5. fertilized ovumdivides
6. 36 days
6.1. Beginig of the primitive vertabraed
6.2. These weeks are the period of most rapid development of fetus.
7. 25-30 days
7.1. Formation of human heart
8. 32 days
8.1. Arms and hands are developing
9. 44 days
9.1. Fetus can be recognized
10. 45 days
10.1. Embryo´s heart is beating twice as fast as the mother´s
11. 52 days
11.1. Developin retina, nose and fingers
11.2. The fetus continual movement in the womb is necesary for muscular and skeletal growth.
12. 12 weeks
12.1. Indiferente penis, girl or boy yet to be determined
13. 5 weeks
13.1. Formation of ventricles of the heart
14. 6 weeks
14.1. Formation of heart valves
15. 8 weeks
15.1. Basic form of heart is visible.
16. 8 months
16.1. Almost ready to be out of womb.
17. Delivery
17.1. The expulsion of baby.
