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Ease 4 - Coggle Diagram
Ease 4
Movement system
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more: diarthrosis
Gliding Movement, Angular Movement, Rotational Movement, Special Movement
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Reproductive system
oogenesis
In the female reproduction system, growth process in which the primary egg cell becomes a mature ovum. some egg cells may not mature for 40 years; others degenerate and never mature. one of these two new cells is usually larger than the other and is known as the secondary ovum; the smaller cell is known as a polar body
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spermatogenesis
the origin and development of the sperm cells within the male reproductive organs, the testes. the testes are composed of numerous thin tightly coiled tubules known as the seminiferous tubules. the sperm cells are produced within the walls of the tubules. half of the new cells from this initial crop go on to become the future sperm cells, and the other half remain as stem cells so that there is a constant source of additional germs cells. the secondary sperm cell still must mature before it can fertilize an egg. maturation entails certain changes in the shape and form at the sperm cell
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