The scrotum
The scrotum is a sac of skin and muscle that contains the testicles in males. It has important functions in protecting the testicles and regulating their temperature. When the temperature is too warm, the scrotum relaxes and allows the testicles to hang away from the body, helping to cool them down. When it is too cold, the scrotum contracts and brings the testicles closer to the body to keep them warm. The scrotum is also sensitive and can be stimulated during sexual activity.
The scrotum is a part of the male reproductive system located between the legs, behind the . It is a loose sac of skin that contains the testicles, as well as other structures such as blood vessels, nerves, and muscle fibers.
Here are some key details about the scrotum:
1. Structure: The scrotum is composed of two separate compartments, each containing one testicle. These compartments are formed by a fibrous tissue called the septum. The scrotal skin is relatively thin and has a wrinkled appearance.
2. Function: The scrotum plays a crucial role in the regulation of testicular temperature. It contains numerous sweat glands that help dissipate heat. This is important for sperm production, as the testicles require a lower temperature than the rest of the body.
3. Temperature regulation: The scrotum responds to changes in environmental temperature by contracting or relaxing the muscles in its walls. When it is cold, the muscles contract, pulling the testicles closer to the body to keep them warm. Conversely, in warmer temperatures, the muscles relax, allowing the testicles to hang lower and cool down.
4. Sensitivity: The scrotum is highly sensitive to touch and temperature changes. This sensitivity is due to the presence of numerous nerve endings, making it a erogenous zone for sexual stimulation.
5. Associated conditions: The scrotum can be affected by various conditions, such as swelling (known as scrotal swelling), inflammation (known as epididymitis or orchitis), infections, tumors, or hernias. Any persistent pain or abnormalities in the scrotum should be evaluated by a medical professional.
It's important to note that this information pertains specifically to the male scrotum. Female anatomy does not include a scrotum.