The scrotum is the one that houses the testes and provides structural support. It is a septum, a specialized connective tissue which is responsible for the internal division which leads to the two specific compartments that contain the testes. It is the scrotum alongside the penis that is firmly attached to the urogenital triangle. The anus is comprised within the posterior section of this triangle.

It is just behind the base of the penis where the scrotum hangs in its protective sac. It is the scrotum’s responsibility to provide structural support for the testes and offer protection to it as well. The skin surrounding the scrotum in an adult male’s body is normally darker than the rest of the skin. It may also have little hair to offer additional protection and is covered with very soft skin. Sebaceous glands are contained within the scrotum.


The scrotal muscles are the reasons for the varying appearance of the scrotum. It is through a layer of smooth muscle tissue known as dartos which is positioned underneath the scrotum’s skin. The spermatic cord creates the base for a small amount of the bands of skeletal muscle found within the scrotum. This helps to create the spermatic cord, a fascia tube which encompasses the testicular nerves, vessels and ductus deferens. Different temperatures may affect the scrotum as a whole and may cause them to contract closer to the body to feel more body heat.

The exact opposite works as well; whenever the temperature is at a comfortable level, the muscles around the scrotum relax and the scrotum will be hanging much lower than normal, away from the body heat offered at the pelvic region. The scrotum is constantly looking for temperatures which are roughly 3 and a half degrees below the body’s normal temperature. Chronic contracting and relaxing of the scrotal muscles help to maintain the temperature of the testes. The testes need the right temperature to produce healthy sperm.

Structurally speaking, the scrotum is divided into two segments. The compartments are designed lengthwise and keep their separation through a fibrous scrotal septum. It is this internal segregation which helps protect the testes from infection or damage from the other one. As an added protection against harm, the left testes hangs lower than the right to avoid compression at the moment of impact. The surface of the testes shows evidence of the scrotal septum along with the appearance of a longitudinal line which runs front to back around the whole testes, except for the part which attaches to the body. This is known as the perineal raphe.

The scrotum needs much blood and requires much attention from nerve activity. The internal iliac artery is the one in charge of quenching the scrotum’s need for blood. Along with the internal iliac artery is the femoral artery which also aids in serving the scrotum’s need for blood. The nerves around the scrotum are sensor nerves which include the posterior coetenous nerves which lead to the thigh, ilioinguinuinal nerves and the pudental nerves.

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