The embryonic period is the most critical period of development because of the formation of internal and external structures.
Which is likely to be the most critical period of fetal development and why quizlet?
Which period of prenatal development is the most critical, and why? Embryonic- period is the most critical time because during these weeks, development begins in 79 all major structures of the body.
What are the most important weeks of fetal development and why?
The fetus is most vulnerable during the first 12 weeks. During this period of time, all of the major organs and body systems are forming and can be damaged if the fetus is exposed to drugs, infectious agents, radiation, certain medications, tobacco and toxic substances.
What is the most important part of fetal development?
Genetic, nutritional, environmental, uteroplacental, and fetal factors have been suggested to influence fetal growth. Uteroplacental and umbilical blood flow and transplacental glucose and fetal insulin are major determinants of fetal growth.