The neural tube closes around the 28th day of gestation, so that would be at the end of the fourth week.
In the 3rd week of pregnancy called gastrulation, specialized cells on the dorsal side of the fetus begin to change shape and form the neural tube.
In the 2nd week of pregnancy before most women know they are pregnant.
It is a fact that they have a nine week gestation period
neuroencephalon
Most women are able to work up until delivery. Illegal drugs and alcohol, and some antibiotics, like Augmentin, will effect the neural tube development, but not mother's exertion. good luck joymaker rn
32 week
about a week
Yes, they do. about two week's into tihere gestation period for about one week.
The gestation period for a dung beetle lasts for one week. Once a dung beetle is born, its average life span is approximately 2 years.
4 weeks - 28 days, or later
They are baby size so I would hardly call them big.
antepartum usually refers to the period between the 24th/26th week of gestational age until birth.