MRCP UK EXAMINATIONS

Detailed explanation-1: -The secondary peristaltic wave is induced by esophageal distension from the retained bolus, refluxed material, or swallowed air. The primary role is to clear the esophagus of retained food or any gastroesophageal refluxate. Tertiary contractions are simultaneous, isolated, dysfunctional contractions.

Detailed explanation-2: -If peristaltic movements do not occur along the oesophagus then the food that we took inside our mouth will not get pushed down through the oesophagus (or foodpipe). If there are no platelets in blood than if we get even small cut, the blood flowing out of the cut will not stop.

Detailed explanation-3: -During primary peristalsis, the LES is relaxed, starting at the initiation of swallowing and lasting until the peristalsis reaches the LES. Secondary peristaltic contractions are the contraction waves of the circular esophageal muscle occurring in response to esophageal distention.

Detailed explanation-4: -Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.