Question

The stage of prenatal development from approximately the 3rd through the 8th week after conception during which the basic forms of all body structures, including internal organs, develop

A) Fetal Stage
B) Germinal Stage
C) Embryonic Stage
D) Neonatal Stage

Answer 1

The stage of prenatal development from the 3rd to the 8th week after conception, during which basic body structures develop, is the Embryonic Stage.

Step-by-step explanation:

This is the period when the basic forms of all body structures, including internal organs, are developed. It follows the Germinal Stage, which encompasses the first two weeks after conception during which the zygote forms and implants in the uterus. The subsequent stage, starting from the 9th week after fertilization, is the Fetal Stage, where rapid growth and maturation of body structures and organs occur until birth. During the Embryonic Stage, significant events such as gastrulation, neurulation, and organogenesis take place. These processes are vital for forming the three germ layers that will differentiate into various tissues, developing the nervous system, and initiating the basic formation of most organs. By the end of this stage, all organ systems are established in a rudimentary form, though they may not be fully functional.