Parts and function of male reproductive organ?

Penis- Houses a small tube through which urine and semen flow, though never simultaneously.

Testicles- Hard lumps of tissue inside which sperm cells are made and stored.

Urethra- The tube through which urine and semen flow.

Prostate Gland- Secretes semen in which sperm cells are transported.

The penis is mostly used to empty one's bladder, through urination. The other function of the set of genitalia, is to sexually reproduce. When the erect penis (erect from a strong flow of blood surging through it) enters the vagina, the penis is stimulated through its many nerves. After stimulation, the male's lower abs, penile muscles, anal muscles, and pubic muscles all contract in several repetitions. This is called the orgasm, when semen is pushed through the urethra from the prostate. Ejaculation can not be contained or stopped, such as a sneeze.