Embryonic development of test tube babies on the twelfth day
IVF is a kind of fetus produced by culturing the fertilized eggs to a certain stage in the laboratory and then transplanting them into the mother's body. On the twelfth day of IVF development, the embryo has entered a critical stage of development. During this period, the development of embryos has clear characteristics and important development. The following is a detailed description of the 12th day embryonic development of IVF from four aspects: embryonic structure, organ formation, development of organ system and potential risks.
Embryonic structure
On the twelfth day of IVF development, the embryo has formed obvious germ. Embryos form three embryonic layers from the ectoderm, mesoderm and endoderm. The ectoderm will form the outside of the embryo, the mesoderm will differentiate into the internal structure of the embryo, and the endoderm will develop into the viscera of the embryo. At the same time, placenta and amniotic sac also formed in the embryo, which played an important role in the process of embryonic development.
In addition, on the twelfth day of development, the embryo also appeared the formation of nervous system. The neural plate begins to form and extend into a neural tube, which is the precursor of the embryonic central nervous system. The formation of neural tube marks the establishment of embryonic nervous system and lays the foundation for the future development of brain and spinal cord.
Organogenesis
On the twelfth day of IVF development, embryonic organs also gradually began to form. For example, the heart began to differentiate into right and left ventricles and began to beat regularly. In addition, internal organs such as liver, lung and stomach also began to form. The development of these organs is crucial for the subsequent growth and development of the embryo.
On the twelfth day of embryonic development, the embryo will also develop a pair of limb primordia. The formation of limb primordium is an important milestone of the embryo, marking the development of the body structure of the embryo. The formation of limbs is crucial to the movement and functional development of embryos.
Development of organ system
On the twelfth day of IVF development, the embryonic organ system also began to develop and improve gradually. For example, the circulatory system begins to establish a preliminary blood circulation and is connected to the vascular system of the embryo. The digestive system also began to form, and gradually differentiated into oral, esophageal, stomach and intestinal tissues. In addition, the urinary system, respiratory system and nervous system of the embryo also began to show slightly shape.
potential risk
There may be some risks during the development of IVF. These risks include embryo implantation failure, early abortion, chromosome abnormalities and pregnancy complications. Therefore, during the development of IVF, doctors and patients need to pay close attention to the development of embryos and possible potential risks, so as to take corresponding measures in time.
To sum up, on the twelfth day of IVF development, the embryo has already formed the embryo, and the nervous system has developed. Organs begin to form and preliminary organ systems, such as circulatory system and digestive system, are established. However, there are some potential risks during IVF development that need attention. Therefore, during the development of IVF, doctors and patients need to pay close attention to the development of embryos and deal with possible risks in a timely manner.
