3/18/2023 0 Comments Diagrams of a penisThis location is important in sperm production, which occurs within the testes, and proceeds more efficiently when the testes are kept 2 to 4☌ below core body temperature. The testes are located in a skin-covered, highly pigmented, muscular sack called the scrotum that extends from the body behind the penis (see Figure 27.2). The seminal vesicles and prostate gland add fluids to the sperm to create semen. Sperm exit the scrotum through the ductus deferens, which is bundled in the spermatic cord. In this section, we examine each of these different structures, and discuss the process of sperm production and transport.įigure 27.2 Testicular Reproductive System The structures of the testicular reproductive system include the testes, the epididymides, the penis, and the ducts and glands that produce and carry semen. For people with a penis, several accessory organs and ducts aid the process of sperm maturation and transport the sperm and other seminal components to the penis, which may deliver sperm to the female reproductive tract. In male humans, the most important androgen is testosterone. The paired testes are a crucial component in this process, as they produce both sperm and androgens, the hormones that support male reproductive physiology. The function of the male, or testicular, reproductive system ( Figure 27.2) is to produce sperm and transfer them to the female reproductive tract. At fertilization, the chromosomes in one male gamete, called a sperm (or spermatozoon), combine with the chromosomes in one female gamete, called an ovum. In almost all sexually reproducing species, these two haploid cells differ in size the smaller gamete is called the male gamete and the larger one is called the female gamete. Unique for its role in reproduction, a gamete is a specialized sex cell, which in humans carries 23 chromosomes-one half the number in body cells. In this chapter and the next chapter, "female" and "male" refer to sex only, and the typical reproductive anatomy of XX and XY individuals is discussed. For some people, gender identity is different from biological sex or their sex assigned at birth. People often use the words "female" and "male" to describe two different concepts: our sense of gender identity, and our biological sex as determined by our X/Y chromosomes, hormones, sex organs, and other physical characteristics. Identify the importance of testosterone in reproductive function.Explain the events during spermatogenesis that produce haploid sperm from diploid cells.Describe the structure and function of the sperm cell.Describe the structure and function of the organs of the testicular reproductive system.By the end of this section, you will be able to:
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |