Fluid build up and pressure Testicular capsule contractions Epididymis Responsible for sperm maturation and motility. Usually two-thirds of the epididymis is needed for sperm transport in the human for normal sperm fertilization capacity. Potential markers of epididymal function include carnitine and glycerol phosphocholine. Sperm take approximately two weeks to get through the epididymis. Sperm are stored near the tail portion and in the vas deferens until they are ejaculated.
Accessory organs Seminal vesicles Contribute prostaglandins and fructose.
Contribute two-thirds of volume of ejaculate. Qualitative fructose is useful for verifying presence and the presence of the vas deferens. Prostate Contributes acid phosphatase, Zn and citric acid. Chronic inflammation may contribute to infertility. Two or more complete semen analyses Should evaluate volume, agglutination, viscosity, quantitative motility and morphology, count, viability and membrane quality.