Secondary oocytes - PowerPoint PPT Presentation

Chapter 28

Chapter 28. Reproductive System. Sperm Cell Development.

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Gametogenesis

Gametogenesis. Meiosis - general. Gametogenesis. = making of gametes Two types: Spermatogenesis oogenesis. Spermatogenesis = meiosis in males Produce 4 sperm cells. Spermatogenesis. WHAT: Spermatogenesis = meiosis in males Produce 4 sperm cells

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The Continuity of Life:

The Continuity of Life:. Reproduction . Chapter 46 Campbell &amp; Reece. Sexual reproduction. Involves 2 events: Meiosis + Fertilization Meiosis produces Haploid (1/2 Chromosomes) Gametes, specialized for: 1) Motility (sperm) 2) Nutrient storage (eggs)

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Cyclic changes in the ovary

Cyclic changes in the ovary. Increase of LH and FSH – increases the growth of follicle . Rupturing of the follicle releases the secondary oocytes . The hormones involved. GnRH : Secreted by hypothalamus Regulates secretion of LH and FSH by pituitary gland FSH:

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