![]() (Image credit: “ Male Reproductive System” by OpenStax is licensed under CC BY 3.0) (C) Sagittal view of the male pelvis with reproductive and urinary organs labeled. (B) Lateral view of a circumcised (foreskin removed) penis with the glans penis and corona exposed. (A) Lateral view of the uncircumcised (foreskin is still present) penis and the scrotum. Details about these male anatomical structures will be discussed below. In this section, we examine each of these different structures, and discuss the process of sperm production and transport. 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 humans, the most important male 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 seminal vesicles and prostate gland add fluids to the sperm to create semen. The spermatic cord is comprised of the ductus deferens, testicular artery, autonomic nerve, lymphatic vessel, and plexus of testicular veins. Sperm exit the scrotum through the ductus deferens, which is bundled in the spermatic cord. The structures of the male reproductive system include the testes, the epididymides, the penis, and the ducts and glands that produce and carry semen (Figure 23.2.1). The function of the male reproductive system 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 oocyte. Unique for its role in human reproduction, a gameteis a specialized sex cell carrying 23 chromosomes-one half the number in body cells.
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