*Explain and give examples of how physical development changes during conception, infancy, childhood, adolescence, and adulthood.

*Explain and give examples of how physical goment changes during conception, infancy, childhood, adolescence, and adulthood.

Physical growth in humans is an ongoing process that most of us ar blessed to witness. The earliest stage of development seems to be the originative period, the first both weeks of conception. During this period the embryo and the zygote sire started to form. The embryonic period, also known as the prenatal period, follows two to eight weeks after conception. The respiratory and digestive systems form at this time also. The middle layer of cells, c bothed the mesoderm, will reverse the circulatory system, bones, muscle, excretory system, and reproductive system. The outer layer of cells, the ectoderm, will become the nervous system, the sensory receptors (eyes, nose, ears), and skin. The placenta, the umbilical cord and the amnion (fluid-filled sac) develop along with the embryo. The final developmental stage during conception would be the fetal period. It begins two months after conception, lasting an average of seven months. Three months after conception the fetus becomes active, moving its weapons system and legs, opening and closing its mouth, and moving its head. The face, forehead, eyelids, nose, and chin are all distinguishable, as are the arms, hands and legs. At four months, a growth super acid occurs in the fetus lower parts.



By the finish up of the fifth month the toenails and fingernails wipe out formed and the fetus is to a greater extent active. By the end of the sixth month the eyes and eyelids have completely formed, a grasping reflex is present and secondment breathing occurs. (1)

Infancy has now come into effect. The cephalocaudal, the first growth recitation in infants, will make the infants head look enormous. During this spurt the head takes up a fourth of the body term the legs take up a third. (7)...

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