What is the fetal period known as in human development?

The fetal period in human development is indeed referred to as the "fetus period." This stage follows the embryonic stage and extends from about the ninth week after conception until birth. During this time, the developing human organism is referred to as a fetus. This period is characterized by continued growth and the maturation of organs and systems, with significant developments in the brain, bodily structures, and the ability to respond to external stimuli.

Understanding the stages of human development is crucial in developmental psychology, as each stage encompasses important physical and psychological changes that lay the groundwork for later life.