What organ are sperm cells formed
Spermatogenesis is the process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis. This process starts with the mitotic division of the stem cells located close to the basement membrane of the tubules. These cells are called spermatogonial stem cells. The mitotic division of these produces two types of cells. Type A cells replenish the stem cells, and type B cells differentiate into spermatocytes.
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How Is Sperm Produced?
How Is Sperm Produced?
Unique for its role in human reproduction, a gamete is a specialized sex cell carrying 23 chromosomes—one half the number in body cells. At fertilization, the chromosomes in one male gamete, called a sperm or spermatozoon , combine with the chromosomes in one female gamete, called an oocyte. The paired testes are a crucial component in this process, as they produce both sperm and androgens, the hormones that support male reproductive physiology. In humans, the most important male androgen is testosterone. Several accessory organs and ducts aid the process of sperm maturation and transport the sperm and other seminal components to the penis, which delivers sperm to the female reproductive tract. In this section, we examine each of these different structures, and discuss the process of sperm production and transport. Figure 1.
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Male Reproductive System
In humans, male sex cells or spermatozoa sperm cells , are relatively motile. Female sex cells, called ova or eggs, are non-motile and much larger in comparison to the male gamete. Male and female sex cells are dramatically different from one another in size and shape. Male sperm resembles long, motile projectiles. They are small cells that consist of a head region, midpiece region, and tail region.
Meiosis and Formation of Eggs and Sperm February 16, Readings: Starr text: Ch 9 cover page, 9. Warmup : Due Weds AM. Just like everyone else Outline: Meiosis.
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