Awesome or not? (3)

Only about 350 years ago with the discovery of the microscope, did scientists begin to discern the facts about embryology.  The male sperm was seen and described in detail.  The egg was carefully examined and seen to have its own structures, not those of the adult.

Today’s scientists can detect the finest structures of egg and sperm analyze their chemical content and study the embryo‘s growth from the first moment of life.

All that has been learned, however, only increases the sense of awe with which human beings behold the beginning of life.

AMAZING ISN’T IT?

20/20   VISION — SEEING YOUR POSSIBILITIES!

What exactly is a human cell?

Like every other living thing, you began your life as one cell.  This single cell came about from the egg of you mother and the sperm of your father and it grew, divided and multiplied itself into the quadrillions of cells that make up your body.

Your cells are of many shapes and sizes.  4,000 cells of the same size laid side by side would make a row only one inch long!  When you were a baby you grew very fast because your cells were multiplying rapidly.  Gradually your rate of growth slowed down.  Between 9 and 11 years of age you began to spurt up again for three to four years.  After 20 you grow heavier but no taller.

Girls usually grow faster than boys until they are around 15, then they slow down while boys keep on growing.  Boys and girls for many generations have been growing in size.  Most of you today are taller that knights of old.

AMAZING ISN’T IT?

20/20   VISION — SEEING YOUR POSSIBILITIES!

How do we get bigger and bigger?

Have you ever asked yourself:  “How do I grow and develop?”  Nursery rhymes talk of sugar and spice and all things nice, but little girls, just like puppy dog tails and little boys for that matter are made of cells.  The human body of an adult consists of about 70,000 trillion cells, all derived from just one cell, the fertilized egg.

Amazing isn’t it?

20/20 VISION — SEEING YOUR POSSIBILITIES!