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embryology |
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embryologyStudy of the changes undergone by an organism from its conception as a fertilized ovum (egg) to its emergence into the world at hatching or birth. It is mainly concerned with the changes in cell organization in the embryo and the way in which these lead to the structures and organs of the adult (the process of differentiation). Applications of embryology include embryo transplants, both commercial (for example, in building up a prize dairy-cow herd quickly at low cost) and in obstetric medicine (as a method for helping couples with fertility problems to have children). See also development. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Embryologically, by week 4 of intrauterine life, precursors of nasal cavities and the lenses of the eyes are formed. It could be argued that incomplete prepuce is not embryologically or etiologically distinct from hypospadias and thus should be included in surveillance. Embryologically, the carotid arteries originate in the third aortic arch and the dorsal aorta. |
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