Testes make sperm and testosterone, with ducts and glands that deliver semen.
Testes in the scrotum keep temperature 2 to 3 °C below body temperature; seminiferous tubules make sperm; Leydig cells make testosterone; epididymis stores; vas deferens, seminal vesicles, prostate and Cowper's glands add fluid.
Sperm production requires cooler temperature. Testosterone is made by Leydig cells under LH. Semen supports and nourishes sperm.
Example: undescended testes reduce fertility.
Testes make sperm and testosterone, with ducts and glands that deliver semen.
Male Reproductive System is one of the 54 topics in Reproduction & Endocrinology. It is rated Beginner, so it suits learners who are starting out in biology. Related topics in this area include Spermatogenesis, Female Reproductive System, Endocrine Glands.
Vasectomy cuts the vas deferens as contraception.
Male Reproductive System is a Beginner topic, so no earlier topic is required. Other Beginner topics in Reproduction & Endocrinology that pair well with it include Reproduction, Asexual Reproduction, Sexual Reproduction.
The closest topics to Male Reproductive System are Spermatogenesis, Female Reproductive System, Endocrine Glands, Hypothalamic-Pituitary Axis. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Male Reproductive System. To practise the whole of Reproduction & Endocrinology, use the Reproduction & Endocrinology quiz.
Male Reproductive System: Testes make sperm and testosterone, with ducts and glands that deliver semen. Spermatogenesis: Production of sperm in the seminiferous tubules by meiosis and differentiation. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Spermatogenesis and explain the difference aloud. Finally, take the Reproduction & Endocrinology quiz and come back to this page for any question you miss.
Production of sperm in the seminiferous tubules by meiosis and differentiation.
🌸 Reproduction & EndocrinologyOvaries release eggs and hormones; the uterus nurtures the developing embryo.
🌸 Reproduction & EndocrinologyPituitary, thyroid, adrenals, pancreas and gonads secrete hormones directly into the blood.
🌸 Reproduction & EndocrinologyThe hypothalamus controls the anterior pituitary, which signals target glands through trophic hormones.
🌸 Reproduction & Endocrinology