HSCI 100 Lecture Notes - Lecture 15: Seminiferous Tubule, Human Chorionic Gonadotropin, Corpus Luteum

• School: Simon Fraser University
• Department: Health Sciences
• Course: HSCI 100
• Professor: Mark Lechner

Document Summary

Hsci 100: lecture 15: the reproductive system the ultimate biological goal . Sperm are produced within the seminiferous tubules of the testes. Sertoli cells help nourish sperm and regulate the process of sperm production (spermatogenesis, a form of gametogenesis) Sperm (spermatozoa are stored and mature in the epididymis (spermiogenesis, which is a cell differentiation pathway) Head covered by a cap called the acrosome which stores enzymes needed to penetrate the egg. Middle piece contain mitochondria to make energy (atp) sperm. Tail a flagellum that provides movement for the. Help regulate the temperature of the testes (37 degrees celsius is too warm and kills sperm) Paired organs that produce sperm and male sex hormones. Composed of seminiferous tubules where sperm are produced continuously from puberty. Sertoli cells help nourish sperm (provide niche) and regulate the process of sperm and production. They produce the male hormones (androgens i. e. testosterone) A typical ejaculate contains 50 to 500 million sperm.