THE CARDIOVASCULAR SYSTEM The cardio vascular system is made up of blood, blood vessels, pulmonary & systemic circulation & the heart. RELEVANT WORKSHEETS – ‘The Circulatory System’ Page 19 WOSE (World Of Sport Examined) Teacher Resource Book ‘The Circulatory System’ Page 20 WOSE Teacher Resource Book ‘The Circulatory System’ Page 21 WOSE Teacher Resource Book ‘The Circulatory System’ PE – 16 Page 49 Qu.1-4 ‘How The Heart Works’ PE – 16 Page 51 Qu.1-9 ‘What’s in Blood?’ PE – 16 Page 53 Qu. 1-9 What Blood Does’ PE – 16 Page 54 Qu. 1-5 ‘Blood Pressure’ PE – 16 Page 55 Qu. 1-4 ‘Circulation & exercise’ PE – 16 Page 59 Qu. 1-7 ‘Questions on chapter 5’ PE – 16 Page 60 Qu. 2, 4 & 5 - 12

What does Oxygenated and Deoxygenated mean? Oxygenated blood: Deoxygenated blood:

The heart as a double pump RIGHT LEFT The right side of the heart transports de-oxygenated blood to the …………….. and deals with blood returning from the The left side of the heart transports oxygenated blood to the …………….. and deals with the blood returning from the

How it Works LUNGS HEART BODY

Oxygenated and Deoxygenated blood When the blood leaves the lungs it is …………………. The blood then visits the muscles in the body and gives the oxygen to them so they can work. The blood is now …………………. The …………………. blood then visits the lungs when it picks up oxygen and becomes ………………….

The structure of the heart

Structure of the heart CHAMBERS 4 1 Left Atrium Right Atrium 2 3 Right Ventricle Left Ventricle

Structure of the heart VALVES Semi-Lunar Valve Semi-Lunar Valve 4 1 2 3 Bisucpid Valve Tricuspid Valve

Structure of the heart BLOOD VESSELS Aorta Pulmonary Artery 4 1 2 Vena Cava Pulmonary vein 3

Structure of the heart BLOOD VESSELS Septum

Functions of the chambers The right atrium takes deoxygenated blood from the vena cava and stores it before sending it through the tricuspid valve. The right ventricle receives de-oxygenated blood through the tricuspid valve before pumping it up the pulmonary artery to the lungs.

Functions of the chambers The left atrium The left ventricle

Functions of the valves The tricuspid valve stops blood flowing back into the right atrium. The bicuspid valve The semi lunar valves stop blood flowing back into the left and right ………………

Functions of the blood vessels The vena cava transports de-oxygenated blood from the body to the heart. Here is gives the oxygen to the working muscles. The pulmonary artery

Functions of the blood vessels The pulmonary vein transports oxygenated blood from the lungs to the heart. The aorta

Blood Vessels Arteries Veins Capillaries

Thermoregulation: Vasodilation of vessels This is when you body temperature rises. It is when the blood vessels expand, meaning the blood flows nearer to the surface of the skin. It is a way of cooling you down. It makes your skin become red after a heart raising activity.

Thermoregulation: Vasoconstriction of vessels This is when your body temperature decreases, which makes your blood vessels constrict. This means less blood flows near the surface of your skin so less heat is lost. It happens when you are It happens when you are cold.