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.
In some football codes, such as association football (soccer), the kicked forward pass is used so ubiquitously that it is not thought of as a distinct kind of play at all. In these sports, the concept of offside is used to regulate who can be in front of the play or be nearest to the goal.