(Dhruv,10, rhymes about one of the most important system in our body)

In our body there is a mystery,
It’s a hidden system, called Circulatory.

Circulatory system has many parts,
Blood, blood vessels, but major one is Heart.

RBC, WBC, Plasma and Platelets are the components of Blood.

RBC’s carry the Oxygen to the body parts,
They are the most active Carts.

WBC’s act like a Guard,
For disease to enter the body is very hard.

Plasma is 90% water,
Which mobilize RBC’s like floater.

Platelets clot the Blood,
When you are injured.

Blood vessels are so organized,
That’s why we should give them a prize.

Arteries, Capillaries and Veins
Together they never go in same.

Arteries carry blood away from the heart
to different body parts,
They can go as quick as darts.

Capillaries transfer blood from Arteries to Veins,
And are thinner than a hair from a Lion’s Mane.

Veins carry Blood to Heart,
From where the Circulatory system ends and starts.

The Heart never sighs,
but it doesn’t like Chips and Fries.

The Heart has four chambers,
Right Ventricle, Left Ventricle,
Right Atrium, Left Atrium

The valves are another part,
Which are found in the chambers of heart.

The valves allows the blood flow from one chamber to another,
They are only one way gate, which makes the system run smoother.

Deoxygenated blood flows from Right Atrium to Right Ventricle through Tricuspid valve,
And from Right Ventricle to Lungs through Pulmonary Valve,
That is perfect for all.

Oxygenated blood flows from Lungs to Left Atrium through Pulmonary Vein,
That too is part of circulatory chain.

Oxygenated blood flows from Left Atrium to Left Ventricle through Mitral Valve,
And from Left Ventricle to Aorta Artery through Aortic Valve.
This is also perfect for all.

The pass of Oxygenated Blood by the Aorta Artery,
Gives all the body parts a lottery.