A bolus is a lump of food
bolus
The stomach
Bolus isn't a specific kind of food. A bolus is a chewed up mass of food that is (generally) on its way from the mouth to the stomach.
Chyme
bolus
esophagus
stomach
Food becomes bolus after it's been chewed and swallowed. It then turns to chyme as it leaves the body. Once chyme has left from the stomach, it is then called feces.
chylomicron
Bolus
The medical term for it is "chyme" (KIME).
After the mouth has finished chewing and forming the bolus, the stomach's role is to further break down the bolus through the process of mechanical and chemical digestion. The stomach muscles contract to mix and churn the bolus, while gastric acid and enzymes are secreted to help break down the food into a semi-liquid mixture called chyme. Additionally, the stomach helps control the rate at which chyme is released into the small intestine for further digestion and absorption.