'Mature sperm cell' diaporamas de présentation

CHAPTER 19: REPRODUCTIVE SYSTEMS 19.1 INTRODUCTION Produce and nurture sex cells.

CHAPTER 19: REPRODUCTIVE SYSTEMS 19.1 INTRODUCTION Produce and nurture sex cells. Transport them to sites of fertilization. Male sex cells: sperm Female sex cells: eggs/ oocytes Sex cells: haploid 23 chromosomes

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The Testicles

The Testicles. The Greatest Organ Known to Man. Function. The testicles have two primary functions: The production of testosterone Production of sperm cells The testes secrete hormones such as testosterone and that is why they are an endocrinal gland. Testosterone.

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Human Reproduction

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Meiosis

Meiosis. Division of sex cells. Mitosis vs. Meiosis. Mitosis: start with one diploid cell, end with two identical diploid cells Somatic cells (most cells in your body) Meiosis: start with one diploid cell, end with four different haploid cells Gametic cells (sperm and egg).

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