Question

food does not pass through the digestive system by gravity you can still digest food even if you are lying down explain how food passes through your digestive system

Answer 1

Food passes through the digestive system by the wave of constriction caused by the circular muscles of the gut and this process is called peristalsis.Food passes through by peristalsis

Answer 2

Food is transported through the digestive tract through the contractive action of muscles in the oesophagus, small and large intestines by a process known as peristalsis. Hence food can still be digested even when one is lying down.  

The process of peristalsis starts in the oesophagus when a bolus of food is swallowed. The longitudinal and circular muscles contract in a wave-like pattern to gradually push the bolus down into the small intestine then into the large intestine.  

Peristalsis ends in the ‘large intestine’, where digested food is absorbed into the bloodstream and undigested food it sent to the rectum for excretion.