Online Lab: Reproduction

The list that I have come up with for this lab about fetal development:

• 1. Fertilization occurs when the sperm and the egg meet and start forming an embryo. this is significant because it's the very beginning of fetal development.
  




• 2. Implantation occurs about 3 to 4 weeks after fertilization. This is important because the embryo must grow in the uterus.

(www.babycenter.com)

• 3. Central Nervous system and Brain develop usually occurs during the 5th week. This is important because the Brain and CNS are needed to keep life going.
  





• 4. Internal Organs have formed and the heart is beginning to pump usually occurs during the 8th week. Like the CNS and the Brain, we need all internal organs.
  
  
  (http://www.babycenter.com/)
  
  
  


• 5. Eyes and Ears develop during the 5th week as well. Ears and eyes are needed for balance and hearing.
  
  
  
  


• 6. Genitals are forming usually occurs during the 10th week and are fully developed by the 12th week.
  
  
  




• 7. Baby goes to "head down position" usually occurs during the 30th week. This prepares the baby and mother for delivery.
  
  
  
  


• 8. Lungs are fully developed usually by 30-34th week. The baby needs their lungs in order to breath, so this is an important organ to be developed.
  
  
  


• 9. Immune system is developing usually happens around the 34th week. This is needed because baby needs to fight off infections.

http://www.babycenter.com/)

• 10. Birth occurs usually at the 40th week.

(www.wikipedia.com)