Process of producing sperm

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When the testes are exposed to FSH from the pituitary, Sertoli cells within seminiferous tubules in the testes produce sperm through meiosis. Immature sperm leave the testes and enter the epididymis where they mature see Figure The process of sperm production takes months. Mature sperm are stored in the tail portion of the epididymis. Upon sexual arousal, the penis becomes engorged with blood, causing the penis to grow in size and become rigid. Erection and further sexual arousal and stimulation may lead to orgasm and ejaculation.
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Spermatogenesis

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Male Reproductive System (for Parents) - Nemours KidsHealth

To really understand how your everyday life can affect your sperm, you should understand how healthy sperm is made in the first place. A healthy man produces approximately million viable sperm cells each day, although only a tiny few of those will ever go on to try fertilizing an egg. Unlike a woman who will have around mature eggs throughout a lifetime, which can be released from the follicles in the ovaries and potentially be fertilized, a healthy man will produce billions of sperm in his entire lifetime. All the sperm production and maturation take place in the lumen of the seminiferous tubules of the testis as shown in figure 1. Fig 1: The testes are composed of numerous thin, tightly coiled tubules known as the seminiferous tubules.
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Producing and Delivering Sperm: The Male Reproductive System

Sperm production is hormonally driven. Brain hormones govern sperm production and are precisely controlled. The male genitalia are responsible for sperm and ejaculate production.
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The testes are the primary reproductive organs and generate sperm cells through a process called spermatogenesis. The glands of the male reproductive system produce sperm and seminal fluid. The prostate gland, the seminal vesicles, and the bulbourethral glands contribute seminal fluid to semen, which carries and protects the sperm.
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