| Term | Definition |
| sperm | male reproductive cell |
| testes | also called testicles; two oval shaped glands that are contained in the scrotum. This gland in the male produces sperm and the male hormone testosterone |
| semen | white milky liquid |
| penis | the external male organ though witch semen and urine pass. |
| scrotum | the external pouch(sac of skin) that contains the testicles,just under the penis. |
| vas deferens | either of two ducts or tubes allow sperm to pass from the testicles |
| urethra | tube that caries urine from the balder out of the body |
| seminal vesicle | secretes an alkaline fluid that helps neutralize semen's acidity, enhances sperm motility by adding a thin milky fluid |
| prostate gland | a firm partly muscular chestnut sized gland in males at the neck of the urethra |
| foreskin | a fold of skin covering the tip of the penis |
| epididymis | carries sperm to vas deferens |
| Bladder | the sack that holds urine |
| ureter | either of a pair of thick-walled tubes that carry urine from the kidney to the urinary bladder |