*During ejaculation, men release semen, which is a complex fluid composed of several components.

*During ejaculation, men release semen, which is a complex fluid composed of several components.

Semen is a thick, whitish fluid that is expelled from the male reproductive system during ejaculation. It contains:

1. *Sperm:* These are the male reproductive cells produced in the testes. Sperm are crucial for fertilization, as they carry the genetic material from the male.

2. *Seminal Fluid:* This makes up the majority of semen and is produced by several glands, including:
   - *Seminal Vesicles:* Produce a significant portion of the fluid, which contains sugars that provide energy for sperm.
   - *Prostate Gland:* Adds additional fluids that help to nourish and protect sperm, as well as providing an alkaline environment to counteract the acidity of the female reproductive tract.
   - *Bulbourethral Glands (Cowper's glands):* Secrete a small amount of fluid that helps to lubricate the urethra and neutralize any acidity.

 The Role of Semen

Semen serves several important functions:
- *Transport:* It carries sperm through the male reproductive tract and into the female reproductive system during intercourse.
- *Nourishment:* The sugars and proteins in seminal fluid provide energy for sperm, helping them to swim and survive.
- *Protection:* Seminal fluid helps to protect sperm from the acidic environment of the female vagina, increasing the chances of successful fertilization.