BABY, BABY,BABY, OHHHH!~(HumanDevelopment)By Lavine Von
What is human development? Human development is the process between fertilization to birth. During human development, the embryo goes through 3 trimesters of development.
Craftyjoe / FreeDigitalPhotos.net1st TrimesterThe first 3 months of a baby’s development.
1st Month Fertilized egg begins to split into stem cells to create different parts for life. Blood cells take shape & circulation begins. The, placenta, a round, flat organ, transfers nutrients and wastes in and out of the baby. Basic face features, eyes, mouth, lower jaw, throat starts to develop.
2nd Month Brain, digestive track, and sensory organs begin to develop. Arms, legs, fingers, toes ears, and eyes start to develop. Euthmen @ Flickr ->
3rd Month Baby has a basic, recognizable shape. Teeth begin to form. Reproductive organs begin to develop. Circulatory and urinary systems begin to function, liver produces bile. Chance of miscarriage drops.
2nd Trimester4th – 6th Baby develops movement.
4th Month Eyelids,eyebrows, eyelashes, nails, and hair are formed. Teeth and bones become more hard. Nervous system starts to function. Reproductive organs fully developed.
5th Month Hair forms on baby’s head, shoulders, and back. Muscles begin to develop. Patrimonio | Dreamstime.com
6th Month Baby is more responsive. Skin a reddish color, wrinkled, with veins visible.
3rd Trimester7th – 9th month. Baby can survive out of its mother.
7th Month Fatstarts going into baby. Baby’s hearing is developed. More movement. More responses to light, sound, and pain. David Castillo Dominici / FreeDigitalPhotos.net
8th Month Maturity and body fat reveres continue. Baby’s brain is rapidly developing. Internal organ systems developed for most part. Lungs may be immature. smokedsalmon / FreeDigitalPhotos.net
9th Month Lungsare nearly fully developed. Baby’s reflexes are coordinated: Can blink, close the eyes, turn the head, grasp firmly, and respond to touch. Baby’s position changes for delivery. Clare Bloomfield / FreeDigitalPhotos.net