Production of sperm in the seminiferous tubules by meiosis and differentiation.
Spermatogonia divide by mitosis, primary spermatocytes undergo meiosis I, secondary spermatocytes meiosis II, producing spermatids that differentiate (spermiogenesis) into sperm over about 74 days. Sertoli cells nurture.
The process is continuous after puberty. Sertoli cells form the blood-testis barrier. Sperm mature in the epididymis.
Remember: millions of sperm are produced daily.
Production of sperm in the seminiferous tubules by meiosis and differentiation.
Spermatogenesis is one of the 54 topics in Reproduction & Endocrinology. It is rated Intermediate, so it suits learners who already know the core vocabulary. Related topics in this area include Oogenesis, Male Reproductive System, Ovulation.
Each primary spermatocyte yields four sperm.
Work through the Beginner topics in Reproduction & Endocrinology first, such as Reproduction, Asexual Reproduction, Sexual Reproduction, then return to Spermatogenesis. Intermediate topics assume the Beginner vocabulary.
The closest topics to Spermatogenesis are Oogenesis, Male Reproductive System, Ovulation, Gametes. 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 Spermatogenesis. To practise the whole of Reproduction & Endocrinology, use the Reproduction & Endocrinology quiz.
Spermatogenesis: Production of sperm in the seminiferous tubules by meiosis and differentiation. Oogenesis: Development of egg cells in the ovary, with unequal division creating one large ovum and polar bodies. 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 Oogenesis and explain the difference aloud. Finally, take the Reproduction & Endocrinology quiz and come back to this page for any question you miss.
Development of egg cells in the ovary, with unequal division creating one large ovum and polar bodies.
🌸 Reproduction & EndocrinologyTestes make sperm and testosterone, with ducts and glands that deliver semen.
🌸 Reproduction & EndocrinologyRelease of a secondary oocyte from the ovary triggered by a surge in luteinising hormone.
🌸 Reproduction & EndocrinologyHaploid sex cells, sperm and egg, that fuse at fertilisation.
🌸 Reproduction & Endocrinology