embryonic and fetal stages
the embryonic and fetal stages
Conception, embryonic development, fetal development, birth.
The development at an early stage for humans is called embryonic development, for pets is called embryonic or fetal development, and for petunias is called seed germination and seedling development.
Embryology
Proximocaudal development refers to the pattern of growth and maturation in a direction from near to far or from the center of the body outward. This typically involves the sequential development of body structures from the core or trunk of the body towards the extremities. It is an important aspect of embryonic and fetal development, as well as the growth of infants and children.
No, embryonic development refers to the stage of prenatal development from fertilization to the end of the eighth week, when basic structures of the body are formed. Fetal development, on the other hand, refers to the stage from the end of the eighth week until birth, during which organs and tissues mature and grow in size.
Fetal Development period. Whereas the first 8-9 weeks is embryonic development or embryogenesis.
By week 8 in fetal development
Cells change (differentiate) substantially in morphology during embryonic and fetal development.
The correct order of the stages in development is typically: 1) germinal stage, 2) embryonic stage, and 3) fetal stage. These stages represent the progression from fertilization of the egg to the formation and growth of the fetus in the womb.
The fetal stage of development begins at the end of the embryonic stage, typically around 8 weeks after fertilization. During this stage, the organs and tissues continue to grow and develop in preparation for birth.