NEET BIOLOGY

Detailed explanation-1: -Inside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.

Detailed explanation-2: -The uterus is created by fusion of the Müllerian ducts by the 10th week of gestation. In the 20th week of pregnancy, the uterine mucosa is fully differentiated into the endometrium (Arey, 1974). Complete absence of the uterus is rare and always coupled with absence of a vagina.

Detailed explanation-3: -During fertilization, the sperm and egg unite in one of the fallopian tubes to form a zygote. Then the zygote travels down the fallopian tube, where it becomes a morula. Once it reaches the uterus, the morula becomes a blastocyst. The blastocyst then burrows into the uterine lining-a process called implantation.

Detailed explanation-4: -After conception, a fertilized egg travels through your fallopian tubes to your uterus. The fertilized egg (called an embryo) implants (attaches) into the wall of your uterus. This triggers the placenta to form. Your placenta begins producing and releasing human chorionic gonadotropin (hCG) into your blood and pee.