Digestion in human

Digestion in humans

• Humans take food through mouth, digest the food and finally the undigested food are removed from the body.
• The food passes from oral cavity and finally the undigested food is defecated through ****.

• It is a complex process involving following steps:

1. Ingestion
   1. Ingestion refers to the intake of food
   2. Ingestion takes place through Mouth
2. Digestion
   1. Digestion refers to the breakdown of ingested food into simpler forms
   2. Teeth, Stomach, Small intestine and secretion from various glands help in Digestion
3. Absorption
   1. Absorption refers to the process in which digested food in absorbed in to the body fluids (Blood & lymph)
   2. Small intestine plays a major role in Absorption
4. Assimilation
   1. Assimilation refers to the process in which absorbed food is transported to different cells of the body
5. Egestion
   1. Egestion refers to the process of removal of undigested food from the body
   2. Large intestine plays a major role in Egestion