CBSE Class 8 Answered
HOW IS BABY FORMED???????DEAR TOPPER PLEASE ANSWER
Asked by satyavani.gokina | 06 Sep, 2018, 07:14: PM
Expert Answer
1. Month 1- After the egg has been fertilized by the sperm, it starts to divide into more cells. When egg reaches the uterus, it attaches itself to the uterus wall which takes the shape of a little ball.
2. Month 2- The embryo has a head with simple eyes and ears. The limb buds have grown into arms and legs. Nostrils can be seen on the embryo’s face. The heart now has 4 chambers. The brain and the blood vessels in the head can be seen through the thin skin. The bones in the arms and legs start to harden and elbows and knees become apparent.
3. Month 3- Its body is fully formed, including ears, toes, and fingers complete with fingernails. The external genitals appeared in week 9, and by week 12 it has fully differentiated into male or female genitals.
4. Month 4- Its body is now covered with a layer of fine hair. Between 16 and 24 weeks the baby moves for the first time.
5. Month 5- The legs are now in proportion with the body and the fingernails are well developed. Faint eyebrows are visible.
6. Month 6- By 24 weeks the baby’s organs are fully formed. The baby now has the face of a newborn baby, skin is wrinkled, red and thin with little underlying fat. And the baby will respond to noise.
7. Month 7- Fat gets deposited under the skin.
8. Month 8- By 30 weeks the toenails are present and by 32 weeks the fingernails have reached the ends of the fingers. Now, the baby is fully developed and waiting for his departure from its mother's womb.
9. Month 9- The head will be lying just on top of the cervix and the baby is about 20 inches (51cm) and weighs approximately 7.5 pounds (3.5 kg).
Answered by Sivanand Patnaik | 07 Sep, 2018, 09:06: AM
Application Videos
-
Test Tube Baby
This video explains the technique of invitro fertilisation. -
Fertilisation in Humans
This video discusses about the differences between the nature of gametes an... -
Internal and External Fertilisation
This video explains the need for hundreds of eggs in external fertilisation...
Concept Videos
-
Reproduction in Humans
Types of fertilization and developmement of embryo into an adult
CBSE 8 - Science
Asked by tanishktayal26 | 09 Mar, 2024, 10:54: PM
ANSWERED BY EXPERTCBSE 8 - Science
Asked by vijaykumarreddych09 | 27 Feb, 2024, 08:32: PM
ANSWERED BY EXPERTCBSE 8 - Science
Asked by muppurugeethanjali | 19 Feb, 2024, 06:45: PM
ANSWERED BY EXPERTCBSE 8 - Science
Asked by aksarac5 | 21 Dec, 2023, 06:08: PM
ANSWERED BY EXPERTCBSE 8 - Science
Asked by durgavasireddy45 | 30 Dec, 2022, 08:38: PM
ANSWERED BY EXPERTCBSE 8 - Science
Asked by saifeealina509 | 15 Dec, 2022, 05:06: PM
ANSWERED BY EXPERTCBSE 8 - Science
Asked by saifeealina509 | 15 Dec, 2022, 05:06: PM
ANSWERED BY EXPERTCBSE 8 - Science
Asked by rvisalatchisuba23 | 09 Mar, 2022, 03:49: PM
ANSWERED BY EXPERT
