ANATOMY

Detailed explanation-1: -Regurgitation is the expulsion of material from the pharynx, or esophagus, usually characterized by the presence of undigested food or blood.

Detailed explanation-2: -Gastroparesis can interfere with normal digestion, cause nausea, vomiting and abdominal pain. It can also cause problems with blood sugar levels and nutrition. Although there’s no cure for gastroparesis, changes to your diet, along with medication, can offer some relief.

Detailed explanation-3: -Hence, The undigested, semisolid food is called faeces.

Detailed explanation-4: -Undigested food could mean you’re not absorbing nutrients, vitamins, and minerals. You can have trouble getting enough vitamins like B12 and key minerals like iron that keep your body working. Malnutrition can lead to: Weight loss.

Detailed explanation-5: -Regurgitation is the spitting up of food from the esophagus or stomach without nausea or forceful contractions of the abdominal muscles. Rumination is regurgitation with no apparent physical cause. A ring-shaped muscle (sphincter) between the stomach and esophagus normally helps prevent regurgitation.