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Respiratory System

Introduction: Today we will be teaching you about the

Respiratory system

The heart pumps the blood.Your heart is located in your chest

and is well protected by the rib cage. It includes the Aorta,right

and left Ventricle, right and left Atrium, Superior Vena Cava,
Pulmonary Vein,Pulmonary Artery, Pulmonary

Valve,Tricuspid Valve,Mitral Valve and Aortic Valve,

Inferior Vena Cava. Your hearts fills with the blood.

Then its muscle contracts to squirt the blood along.

When the heart contracts, it squeezes try squeezing

your hand into a fist. That's sort of like what your

heart does so it can squirt out the blood. Your

heart does this all day and all night, all the time.

The heart is one hard worker.

The left lung and the right lung has divide 3 lopes

in the upper position middle position and the low

position and also the left lung is small because

the heart is near the left lung and the right lung

is bigger than the left lung.

The right lung helps you breathe because if you  

don’t have a lung you will die. The Respiratory system

is made from your lungs.smaller than your left lung

because your heart is by the right lung.  

The Diaphragm is at the bottom of the lungs and

also the Diaphragm help humans breathe.

Conclusion: Now you have learnt about the

respiratory system.

LI:This week we carried on the circulatory system and the
respiratory system.