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Ductus Deferens
...  It connects to the right and left epididymis and moves sperm by way of the ejaculatory ducts. In humans, each of the tubes is around thirty centimeters in length. The Ductus deferens is part of the spermatic cords. When ejaculation occurs, the smooth muscle that is on the walls of the vas deferens contract by reflex. This action allows the sperm to be propelled forward, and this process is  ...

Scrotum
...  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  ...


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