Lecture 20-endo 7 - The Endocrine System Lecture 20 VII....

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The Endocrine System Dr. K. Banks Lecture 20 VII. The Hormonal Regulation of Reproduction 1 III. The Thyroid V. Hormones of Calcium Balance VII & VIII. Hormonal Regulation of Reproduction IV. The Adrenal Glands VI. Hormonal Regulation of Energy Metabolism 2 Gametes Gametes Male – spermatozoa Female – ova Haploid – n chromosomes Diploid – 2n chromosomes Fertilization n+n= 2n 3 Chromosomes Autosomes come in pairs : 22 pairs Each in a pair carries same complement of genes (homologous) Not all genes paired 4
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Gametogenesis Mitosis = normal cell division DNA replicated once Cells undergo division once Meiosis = cell division to produce gametes DNA replicated once Cells undergo division twice 5 Mitosis Meiosis National Library of Medicine 6 Hormonal Control of Reproduction GnRH (hypothalamus) FSH and LH or gonadotropins (anterior
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Lecture 20-endo 7 - The Endocrine System Lecture 20 VII....

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