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14 Cards in this Set

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Embryology
the formation of basic structures of the body; literally second through eighth week
Development
maturation using basic plan established during embryogenesis; includes prenatal and postnatal periods
Tetratology
study of causes of malformations (birth defects), the anomalies present at birth
Descriptive embryology
a. when a particular process is carried out
b. earliesr branch of field
Experimental embryology
a. why a process occurs at a particular time and in a particular manner
b. uses other systems as model(mouse and chick)
Gametogenesis
production of the two cells required for generation of a new individual
Meiosis
purpose is to reduce chromosome number by half
Primary germ cells
(1° spermatocyte and 1° oocyte) divide by meiosis
in males, 1° spermatocyte produces
4 gametes
In females, 1° oocyte produces
1 gamete
Spermatogenesis/ spermiogenesis
process of production of male gamete and modifying it to perform reproductive function
Both oogenesis and spermatogenesis
a. produce haploid gametes
b. produce mature gametes beginning at puberty
Spermiogenesis
converts spermatids to spermatozoan
Oogenesis
formation of the female gamete