Sagittal section of the male bladder and genitalia. | The corpus cavernosum is erectile tissue composed of a series of blood sinus chambers | The corpus spongiosum is found surrounding the urethra and in the glans penis |  penile urethra |  scrotum | The seminiferous tubules of the testis are the location for sperm production | The epididymis is a coiled tubule which stores sperm. | pubic symphysis | The prostate gland produces a sperm-activating semen. | The ejaculatory duct is a protion of the vas deferens containing fibromuscular cells which function during ejactulation. | prostatic urethra | urinary bladder | The external urethral sphincter is part of the skeletal muscle of the urogenital diaphragm. | The external anal sphincter is part of the urogenital diaphragm skeletal muscle. | The  internal anal sphincter is involuntary. | https://www.penetric.com/penis-enlargement-pills/