| A | B |
| ejaculation | a sudden and foreceful discharge of semen from the penis |
| seminal vesicles | two small pouches inside the lower abdomen near the prostate gland and bladder |
| foreskin | the piece of skin covering the end of the penis |
| nocturnal emission | the involuntary ejaculation of semen that generally happens when a male is sleeping |
| scrotum | the bag of skin and muscles which holds the testicles |
| circumcision | the surgical removal of the foreskin |
| vas defrens | the tubes which runs from each testicle to the urethra |
| prostate gland | the gland in the center of the lower abdomen near the bladder |
| semen | the thick milky fluid which contains sperm |
| urethra | the tube the carries urine and sperm to the outside of the body |