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Duke Embryology - Craniofacial Development

Duke Embryology - Craniofacial Development

Duke Embryology - Craniofacial Development

Duke Embryology - Craniofacial Development

Difference between Spermatogenesis and Oogenesis

As we all know spermatogenesis and oogenesis are two processes that are initiated in the human gonads to produce gametes. Let us highlight some facts about these two series of events: facts about t…

Oogenesis: diploid germ cells in ovary: oogonia, mitosis primary oocytes, meiosis 2 daughter cells diff. size; 2nd oocyte (large): 95% cytoplasm; polar bdy usually arrests develop; 2nd. oocyte divides to large ovum & 2nd polar bdy; only 1 funct. ovum; 22 auto + X chrom; begins fetus, 6th mths ovaries frmd, primary oocytes in diplotene, puberty: release 1 prim. oocyte per month from alt. ovaries; ovulation: oocyte meios. I, metaphase meios. II, when fert, meiosis II, menses: unfert. oocytes…

Oogenesis: diploid germ cells in ovary: oogonia, mitosis primary oocytes, meiosis 2 daughter cells diff. size; 2nd oocyte (large): 95% cytoplasm; polar bdy usually arrests develop; 2nd. oocyte divides to large ovum & 2nd polar bdy; only 1 funct. ovum; 22 auto + X chrom; begins fetus, 6th mths ovaries frmd, primary oocytes in diplotene, puberty: release 1 prim. oocyte per month from alt. ovaries; ovulation: oocyte meios. I, metaphase meios. II, when fert, meiosis II, menses: unfert. oocytes…

GREAT Embryology Chart Telling Which Parts Lead to Which Organs!!

This informative Embryology Chart visually explains via color coding which areas of the very early fetus will become which facial features on the more recognizable grown baby. Telling Which Parts Lead to Which Organs