Circulatory system

Circulatory system

Do any one know about circulatory system? if no let us begin

Hello everyone

• Today I will like to explain on circulation system chapter.

• So let us begin.

Circulation

• The Circulation is responsible for transporting materials throughout the entire body.

• It transports nutrients, water and oxygen to your billions of body cells and carries waste such as carbon dioxide that body cells produce.

• It is amazing highway that travels through your entire body connecting to all your body cells.

Location of the heart.

• The heart is located in thoracic cavity.

• Posterior to the sternum.

• Superior to the diaphragm.

• Between the lungs.

• The tip of the heart is called the ‘apex’

Heart

• A hallow muscular organ.

• Located in thorax between 2 lungs.

• 4 chambers.

• 4 valves.

• 2 atrium &2 ventricle.

• 2 separate pumps (R&L) right side revises blood from the body and sent it to the lungs (pulmonary).

• Left side receives blood from the lungs and send it to the body.(

The heart

• The heart is composed of 4 chambers:-

• Right atrium , Right ventricle.

• Left Atrium, Left ventricle

• Blood turning into the heart enters atria, and is then pumped into the ventricle.

• From left ventricle, blood passes into the aorta and then enters systemic circulation.

• From the right it enters the pulmonary circulation via the pulmonary arties.

Here we can see the structure of the heart.

Right atrium and Right ventricle.

• Right Atrium - right chamber receives blood from the body- deoxygenated blood.

• The right ventricle- lower chamber receives blood from the right atrium and sends to lungs through the pulmonary artery.

Left atrium and Left Ventricle

• Left atrium- Left upper heart receives oxygenated blood from the lungs and send it to the left ventricle.

• Left ventricle- lower left chamber receives blood from the left atrium and send it through the aorta to the body.

Definitions

• AROTA :- The main trunk of the systemic arteries, carrying blood from the left side of the heart to arteries of all limbs and organs.

• PULMONARY:- Carries blood to the lungs

• PULMONARY VALVE:- Control blood movement from the right ventricle into the pulmonary artery.

• AORATA VALVE:- Control blood from the left ventricle to the aorta.

• TRICIPUID VALAVE:- Control blood flow between the right atrium and ventricle.

• MITRAL VALVE :- Control blood flow between the left atrium and ventricle.

Definitions

• ARTERIES :- Carry blood from the heart.

• CAPILLIERIES :-Exchange material with tissue fluid.

• VEINS :-Return blood to the heart

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Multiple Choice

What is definition of ARTERIES?

• Carry blood from the heart.

• Carry blood to the lungs

• Remove blood from the body

Multiple Choice

Where is your heart located?

• Between the kidneys

• Under heart

• Thoracic cavity.

• Above lungs.

Ending

This is the end of the chapter. I hope you all enjoyed this chapter, so I will plan 1 more chapter. Thank you everyone.