The Heart's Pathway

Class 10 Science: life processes (transportation, double circulation)

Follow a drop of blood from the body through the heart, to the lungs, back to the heart and out again.

Words to know

Atrium
An upper chamber of the heart that receives blood.
Ventricle
A lower chamber that pumps blood out.
Double circulation
Blood passes through the heart twice in one full journey.
Oxygenated blood
Blood carrying plenty of oxygen, from the lungs.

Quick check

Answer 3 questions to check what you learned.

1. Which chamber pumps oxygen-rich blood to the whole body?
2. Where does blood pick up oxygen?
3. Why is it called double circulation?

Try at home

Find your pulse on your wrist and count the beats in 15 seconds. Multiply by 4. Then jump 20 times and count again. Why does it go up?

Next, try a full lab

Neuron Signals Photosynthesis All Class 9–10 labs