1. The circulatory system is also known as the cardiovascular system. It consists of… 3. The Heart1. Blood2. Blood Vessels The three main types of blood vessels are arteries, veins and capillaries. The Circulatory System

2. Arteries Veins The Major Blood Vessels

3. (A) (V) Lungs Heart Body How Blood is Pumped around the Body Blood flows around the body in a ‘figure of eight’ circuit, passing through the heart twice on each circuit. Blood travels away from the heart through arteries (A). Blood returns to the heart through veins (V). There are 2 separate ‘loops’ to the circuit: The top loop – carries blood from the heart to the lungs and back. The bottom loop – carries blood from the heart to all over the body and back. (A) (V)

4. The heart is divided into 2 parts. Each part is a pump, so the heart is a double pump. right side The right side pumps deoxygenated blood to the lungs to pick up oxygen. left side The left side pumps oxygenated blood to the rest of the body for use. From the lungs From the body To the lungs To the body How the Heart Pumps Blood

5. The Cardiac Cycle - How the Heart Beats Every time the heart beats it goes through a 3-part cycle: Stage 1 The top chambers (atria) relax and fill up with blood from the veins. Stage 2 The atria contract and the blood is forced into the relaxing bottom chambers (ventricles). Stage 3 The ventricles contract and the blood is forced out of the heart into the arteries.

6. The Cardiac Cycle - How the Heart Beats

7. Pulse rates are caused by the action of the heart as it pumps blood around the body. Pulse Rates Every time the heart beats (contracts) it can be felt as a pulse, due to the pumped blood making the artery walls expand and then contract. It can be measured wherever an artery passes close to the surface of the skin.

8. Temporal Pulse Found just over the temple on either side of the forehead. Carotid Pulse Found on either side of the neck to the side of the windpipe. Femoral Pulse Found at the top of each leg in the groin. Radial Pulse Found at the base of the thumb on the inside of each wrist. The four main pulse rate points of the body are… Pulse Rates

9. The circulatory system is the body’s… How does the Circulatory System Contribute to Performance in Sport? Delivery service for oxygen, glucose & water. Waste disposal unit for carbon dioxide. Temperature control system together with the skin. As a result, the circulatory system allows us to effectively live, move and undertake everyday tasks and perform in a wide variety of physical activities.

10. Supply the working muscles, especially in the legs and arms, with greater supplies of both oxygen and glucose so they can continue to contract and create movement. Athletics – The Marathon A full marathon run is 26.2 miles. In order to allow the body to complete such a demanding task the circulatory system must: Remove lactic acid and carbon dioxide from the body so the athlete can continue to run well and without pain. Reduce body temperature while running via the blood and sweating, so running speed can be maintained.