The First Stage of Prenatal Development

Many people must know why it is important to ensure that children in the uterus are safe and correctly developed, but it is not well known why it is important . In all stages of embryogenesis, embryogenesis, and fetal life, a single cell grows into a fertilized egg, embryo and fetus before it is born. In order to succeed a healthy baby, it is necessary to protect premature infants and tolerate specific teratogenic substances according to the mother's lifestyle.

The first stage of human development is the prenatal stage. When talking about the prenatal stage, it includes the concept of birth. When the egg is fertilized, the prenatal development stage begins. This happens when male spermatozoa are emitted and encounter an egg and start fertilizing. This is called a fertilized egg when the egg and sperm encountered. This is the first stage of pregnancy. According to Robert Feldman's Child Development Text, twins can also develop at this stage. Due to the occurrence of twins, eggs must be divided between the first two weeks of fertilization. If splitting occurs, the text indicates that two different types of twins may occur; the first twin is called the same twin. Identical twins mean that the twins are genetically identical. The second type that can happen if division occurs is double oval twin. Double oval twin occurs when two separate eggs are fertilized by two separate spermatozoa

Prenatal development is a process that takes place within 40 weeks of the birth of a child. Prenatal development has three stages. Hair growth, embryo, fetus. Prenatal development can also be divided into three identical three months, but it does not correspond to three stages. The first semester ends at the end of the fetal period, the second semester ends at week 20, and the third term ends at birth. The germination period is the developmental stage from conception to 2 weeks (implantation). This concept occurs when a sperm fertilizes an egg and forms a fertilized egg. Fertilized eggs begin with a single cell structure that occurs when sperm and ova combine. At the moment of the conception, the DNA of the mother and father is transmitted, and at this point the genetic composition and gender of the future fetus are determined.

Prenatal development, or prenatal development (meaning "related to birth" from Latin natalis) is the process by which embryos and fetus develop during pregnancy. Prenatal development begins with fertilization, the first phase of embryogenesis, which continues in the fetus until delivery. Fertilization occurs when sperm successfully enters the egg membrane. The chromosome of the sperm binds to the chromosome of the ovum to form a single cell called fertilized egg and starts the germination stage of prenatal development. Germination period refers to the period from fertilization to early embryonic development and implantation. The germination period ends at about 10 days pregnant