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.
Understanding Baseballâs Balk Call â and How to Avoid It. 1  With runners on base, after the pitcher goes into his wind-up or makes any movement associated with delivering the ball to home plate, the pitcher must not interrupt his motion or the umpire can call a balk.