The prostate is a small gland located just below the bladder. The gland is only found in men. It is shaped like a doughnut and surrounds the urethra, the tube through which urine flows. The prostate reaches its adult size by the age of 20 and weighs a little less than one ounce.
Zonal marking Zonal marking is a defensive strategy where defenders cover an area of the pitch rather than marking a specific opponent. If an opponent moves into the area a defender is covering, the defender marks the opponent.
Territorial Marking. Also found in: Wikipedia. The marking of a boundary with an odorous substance or pheromone secreted from a specialised, testosterone-responsive marking gland, typically near the chin or rump, or secreted in urine.