2. Blood
• Blood is a very important liquid.
It carries oxygen and the subtances from
digestion to diferent parts of our body.
• The journey of our blood around our
body is called circulation.
3. THE HEART
• The heart is an organ.
• It pumps the blood around our body.
• Our heart is between the two lungs.
4. • The circulatory system is responsible for
blood circulation.
• It is made up of the heart and the blood
vessels
5. BLOOD VESSELS
• Blood circulates around our body inside
blood vessels.
• Three types of blood vessels.
6. • Arteries carry blood with oxgen.
• Veins collect bood with carrot dioxde.
• Capillaries connect veins and arteries.
7. Breathing
• The respiratory system is made up of the
following organs: nostrils, trachea, two
bronchial tubes and two lungs.
• Our ribs protect our lungs.
8. • Air enters our body through the nose and
mouth.
• It passes through the nostrils.
• It goes down through the trachea and the
bronchials tubes, and into the lungs.
9. • Oxygen from the air passes through the
walls of our lungs into our blood.
10. • Oxygen from the air passes through the
walls of our lungs into our blood.
