Digestive & Respiratory System | Grade 4 | Unit 1 - Concept 1 - Lesson 3 - Part (1/2) | Science

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In This Part :
▌ Each system consists of a group of organs that are working together to perform a specific function.
▌ Digestive system and respiratory system are examples of systems found in the body of human or animal.
System
It is a group of organs that work together to perform a specific job (function).
Digestive system and respiratory system working together to get energy from food and breathing.
Human digestive system
Digestive system
It is the system responsible for breaking down food into small parts to enable the body cells to use them in getting energy.
Digestion process
It is a process of breaking down food into smaller parts that the body cells absorb and use them to get energy and grow.
The structure of the digestive system:
Digestive system starts with mouth and ends with anus.
Description and function of organs of human digestive system :
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