Definition of bisect. transitive verb. : to divide into two usually equal parts. intransitive verb.
1 Muscle Pulls: Pulls of the muscles or ligaments in the chest and injuries to the ribcage may lead to right side chest pain.  Food Blockage: Blockage of the esophagus with food or beverages causes congestion, which can lead to pain in the right side of your chest.
Causes of Pain in the Upper Right Back. Pain in the upper right back is usually caused by a muscle or bone problem. However, pain in this location is sometimes caused by a condition affecting an internal organ. The body's pain network sends impulses from the source of the discomfort through nerves to the brain.