Cervical cancer is caused by severe abnormal changes in the cells of the cervix. Most precancerous or cancerous cell changes occur in the cervix at the transformation zone, because these cells normally undergo constant change.
A balk in baseball is any action by the pitcher that violates the balk rule, which restricts the actions of the pitcher when there is at least one runner on base. The purpose of the balk rule is to protect the runner or runners from being deceived by the pitcher.
In the American major leagues, Rule 1.10(a) states, The bat shall be a smooth, round stick not more than 2.61 inches in diameter at the thickest part and not more than 42 inches in length. The bat shall be one piece of solid wood..