embryo
embryo The first three months of pregnancy are the first trimester
The fetus
The term for the developing organism between two months of development and birth is fetus.
The germinal stage is the first stage of prenatal development that begins at fertilization and lasts for about two weeks. During this stage, the zygote undergoes rapid cell division and travels down the fallopian tube to the uterus, where it implants in the uterine lining. The germinal stage ends with the formation of the blastocyst, which is the early stage of embryonic development.
After the first two months of pregnancy, the period is referred to as the second trimester, which spans from weeks 13 to 26. Prior to this, the first trimester includes the first 12 weeks of pregnancy. The second trimester is often marked by significant fetal development and changes in the mother's body.
Child language development stages include babbling, first words around 12 months, two-word phrases around 18-24 months, vocabulary growth, and more complex sentences by age 5.
A horse has one uterus, which is bicornuate in structure, meaning it has two horn-like sections. This anatomical feature is common among many mammals, allowing for the development of a single fetus or sometimes twins. The single uterus is essential for the reproductive process in mares.
In general, pregnancy in humans is divided into three trimesters - the first three months, the second three months and the final three months. This also roughly corresponds to stages in fetal development - cellular division and basic morphology, organ development and refinement, and overall fetal growth.
During the first two months of pregnancy the unborn child is known as an embryo.
It is a rare condition, but a woman can have two uterus. The reason for the development of double uterus is still unknown. Two uteri can cause severe pain and excessive bleeding during menstruation.
During the first two months of pregnancy the unborn child is known as an embryo.
If teratogens are introduced during the germinal period of development (first two weeks after conception), it is most likely that the pregnancy will not continue, resulting in a miscarriage. This is because exposure to teratogens during this time can disrupt the normal development of the embryo and prevent it from implanting properly in the uterus.