S3.3.1 For the adult
Organs and systems
What is inside my body, and how do all the parts work together?
What this chapter teaches
An organ is a part of the body with one main job. Organs work in teams called systems, and the systems depend on each other. Running needs the lungs, the heart and the muscles at the same time.
Three questions to ask
There is no one right wording. Listen for the idea.
- Which organs can you find in your own body, and where are they?
- Which systems do you use when you climb a hill?
- What would happen to a runner if the heart stopped moving blood?
After the chapter, the learner can
- Name the main organ systems and one organ in each
- Explain how two systems work together when you run
What they copy into their notebook
An organ has one main job. A team of organs is an organ system. Systems need each other. Running uses the lungs, the heart and the muscles together.