What are the rhythmic contractions of the digestive tract called?

The correct answer is Peristalsis.

Key Points

• Peristalsis refers to the wave-like, rhythmic contractions of the smooth muscles in the walls of the digestive tract.
• These contractions help move food and liquids through the digestive system, from the esophagus to the stomach and intestines.
• Peristalsis is an involuntary process controlled by the autonomic nervous system.
• The process begins when food is swallowed and continues throughout the digestive tract, ensuring the efficient movement and digestion of food.
• Disorders like achalasia or intestinal obstruction can impair peristalsis, leading to digestive issues.

Additional Information

• Segmentation: This is another type of movement in the digestive tract, involving localized contractions that mix and break down food rather than propelling it forward like peristalsis.
• Absorption: This is the process through which nutrients from digested food are absorbed into the bloodstream through the walls of the intestines.
• Autonomic Nervous System: The involuntary control of peristalsis is regulated by the autonomic nervous system, which includes the sympathetic and parasympathetic divisions.
• Esophageal Peristalsis: In the esophagus, peristalsis ensures the swift movement of food from the mouth to the stomach, even when a person is lying down.
• Clinical Relevance: Conditions like gastroesophageal reflux disease (GERD) and irritable bowel syndrome (IBS) can affect peristalsis, leading to digestive symptoms such as heartburn or abdominal discomfort.