Doctor insights on:
Development Of A Fetus Fertilized Egg Organs Tissue Organ System
When you subtract 2 weeks from the ga provided by an ultrasound, does that give you the estimated fertilisation age or the estimated fetal age?
Yes: When estimating gestational age by using an ultrasound scan, 2 weeks are added to the fetal age (the fetal age is the fertilisation age). ...Read more
The body is composed of tissue that are classically described as beiing derived from three basic embyonic layers known as the endoderm, mesoderm and ectoderm that then differentiate into the structures that compose the body such as skin, soft tissues, bone, muscle, organs, etc. Stem cells are not differentiated and have the potential to ...Read more
Could anavar affect the fetus if I've taken 5 mg during ovulation/fertilization time but discontinued it couple days after?
Conception: Sperm enter vagina in semen & then pass thru cervix, pass thru uterus into fallopian tube containing ovum or egg after ovulation. 1 sperm pierces thru membrane covering ovum & nucleus of sperm fuses with nucleus of ovum. This fertilized ovum now divides from 1 cell to 2 then 4 & so on.Now an embryo, transfers to body of uterus. Stem cells, within embryo divide, now a fetus develop various tissues ...Read more
A fetus: A fetus is a human form. These are human cells dividing and growing. ...Read more
In the big scheme...: In the big scheme of the universe, maybe anything is possible. Most people feel that sperm can survive 3 days inside a woman. Some people believe that under good circumstances, sperm might survive 5 days max. However, if you know you had sex on june 9 and you somehow proved you didn't ovulate until june 18 and became pregnant, then you are truly special for keeping one or more sperm alive >8 days. ...Read more
If I'm not ovulating and I have unprotected sex is it okay if he cums inside me since there is no egg to fertilize ?
Isn't 2% of sperm penetration for in vitro fertilization fine since there are millions of sperm and 1 egg?
Maybe: When we evaluate sperm , information can be used in certain ways, we can categorize sperm as normal, mildly abnormal or severely abnormal. We have some idea of how each parameter matters, but certain aspects are not understood . With significant abnormalities, sometimes the sperm just do not function as well, or sometimes the sperm may have genetic abnormalities and the effect goes beyond the #. ...Read more