Male

• Testis is a male gonad that produces sperm.
• Epididymis is a mass of tubes in which sperm are stored.
• Sperm duct is a muscular tube that links the testis to the urethra to allow the passage of semen containing sperm.
• Seminal vesicle adds fluid and nutrients to sperm to form semen.
• Prostate gland adds fluid and nutrients to sperm to form semen.
• Scrotum is a sac that holds the testes outside the body, keeping them cooler than the body temperature.
• Urethra passes semen containing sperm through the penis; also carries urine from the bladder.
• Penis can become firm, to insert into the vagina of the female during sexual intercourse to transfer sperm.