Excretory duct is where they join the ampulla and form the ejaculatory duct. Alkaline make sure environment sperm are passing through are not acidic. Mitochondria use fructose and citric acid to make atp. Semen coagulates helps keep sperm within the semen and use nutrients within semen to make atp. Ampulla of vas deferens + duct of seminal vesicle ejaculatory duct. Prostate gland grows pushes on the bladder so less can be kept in it (go to bathroom more) 20-30 ducts before entering the prostatic urethra. Corpora cavernosa masses filled with blood sinuses.