The penile shaft is a cylindrical body part that extends from the base to the tip of the penis. It houses the urinary system and reproductive organs, including the prostate gland and seminal vesicles. On average, it measures between 4 inches and 6 inches in length and can be erect for up to 90 minutes after sexual stimulation.
The penile shaft is made up of three main structures: the corpus cavernosum, which contains blood vessels and nerves; the spongy tissue; and the corpora cavernosa. The former refers to the pair of long, thin tubes that run along the sides of the shaft, while the latter comprises two columns of smooth muscle fibers located on either side of them. Together, these structures work together to create an erection when aroused.
When stimulated sexually, nitric oxide is released into the body, causing blood vessels in the corpus cavernosum to relax and dilate. This allows more blood to flow into the penis and fills it with a firm, engorged state known as an erection. The corpus cavernosum also becomes stiffer due to increased pressure from within, helping to maintain the erection.
Meanwhile, the corpus spongiosum is responsible for creating the urethra - the passageway through which urine and semen exit the body. Located at the bottom of the shaft, this structure expands during an erection and contracts again once ejaculation has occurred.
In addition to its physical features, there are several myths and misconceptions surrounding the penile shaft. Some people believe that size matters most, but research suggests that overall satisfaction levels depend largely on emotional connection rather than length or girth alone. Others may worry about whether their partner will be satisfied with their performance or appearance, leading to anxiety around intimacy. However, communication, openness, and honesty can go a long way towards building trust between partners and addressing any concerns they might have.
Overall, understanding how the penile shaft works is essential to enjoying healthy sexual relationships. With proper care and maintenance (including regular exercise and good hygiene), men can experience pleasurable sensations while ensuring their partner's pleasure and safety too.