The Male Anatomy: Understanding the Penis

The Male Anatomy: Sexual Function

The male reproductive system — male anatomy include the following:

  • Penis
  • Scrotum
  • Testes (testicles)
  • Vas deferens
  • Seminal vesicles
  • Prostate gland
  • Urethra

Male Anatomy: Penis

The penis anatomy is broken down into three main parts: the root, the body, and the glans penis. The root is the part attached to the abdominal wall, also considered the base. The body is the middle portion that consists of three cylindrical spaces of soft tissue. When the two larger spaces fill with blood, it causes the body of the penis to stiffen, thus forming an erection. The glans penis is the cone-shaped end, or head, of the penis that has a small ridge separating it from the body of the penis. The ridge is known as the corona.

 

Male Anatomy: Scrotum

The scrotum is the thin layer of skin and muscle that protect the testicles. It acts as a climate control system, keeping the testicles on the outside, away from the body. This keeps the area a few degrees cooler then body temperature which is necessary for optimal sperm development.

 

Male Anatomy: Vas deferens

The testes (testicles) are two olive-sized oval bodies that serve two functions. One is to produce sperm, which is the male sex cell; and two, to produce testosterone, which is the male sex hormone.

 

Male Anatomy: Seminal Vesicles

When sperm is produced, it travels to a collection area known as the epididymis, which then travels through another duct called the vas deferens. The vas deferens joins the seminal vesicles to form the ejaculatory duct – or the shaft where the sperm travels with other fluids to form semen. The ejaculatory duct also provides nutrients that the sperm needs and lubricates the urethra.

 

Male Anatomy: Prostate Gland

The prostate which is one of the most important function within the male reproductive system has no known function, other than reproduction. It, along with the seminal vesicles, produces the fluids that form semen. It is a walnut-sized organ that lies below the urinary bladder and surrounds the urethra. This male reproductive organ can continue to grow throughout life and cause a blockage in the urethra. This can be corrected with medications or surgery.

 

Male Anatomy: Urethra

And the final part of the male reproductive organ is the urethra. This part of the organ does double duty in that it transports urine from the bladder and it transports semen produced from the prostate and the seminal vesicles out the tip of the penis. If there is any kind of tissue damage or scaring can cause urinary difficulty.  »

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Male Anatomy Fun Facts

To achieve an erection it takes multiple input from numerous areas of both the brain and the spinal cord.

Did you know?

The blood supply of the penis comes from a main blood vessel that goes down the back of the body called the aorta