Cardiovascular System

Question 1

The cardiovascular systems job is to move blood around your body and as the blood travels around your body does lots of really useful stuff to help you take part in sports

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Question 2

The Cardiovascular system transports substances into the bloodstream such as oxygen, carbon dioxide and nutrients for example glucose as this gives the muscles what they need to release energy to move during exercise and takes away waste products

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Question 3

Temperature Control is moving more blood nearer to the skin so it cools the body which means the athlete can exercise for a long time without overheating

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Question 4

The cardiovascular system is made up of three main parts which are the heart, blood and blood vessels

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Question 5

During any kind of physical activity the blood needs to circulate around the body to deliver oxygen and glucose to your muscles and take carbon dioxide out of them

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Question 6

The cardiovascular system is a double circulatory system which means there are two circuits. The Pulmonary circuit connects the lungs to the heart and the systemic connects the rest of the body to the heart

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Question 7

In the Pulmonary Circuit deoxygenated blood enters the right ventricle and tricuspid valve

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Question 8

The right ventricle contracts pushing through the semi lunar valve into the pulmonary artery which carries the blood to the lungs to be oxygenated

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Question 9

Oxygenated blood from the lungs enters the left atrium through the Pulmonary veins

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Question 10

In the systemic circuit Oxygenated blood enters the left ventricle through the bicuspid valve

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Question 11

The left ventricle contracts pushing the blood through the semi lunar valve into the aorta which carries the oxygenated blood to the rest of the body including the muscles

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Question 12

When the muscles have used the oxygen in the blood it becomes deoxygenated and then enters the right atrium through the vena cava vein.

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Question 13

Arteries, Veins and Capillaries all carry blood

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Question 14

Blood Vessels transport blood as they have a hollow centre called the lumen so blood can flow through

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Question 15

Arteries carry blood away from the heart. All arteries carry oxygenated blood except for the pulmonary artery. Their thick walls allow them to carry blood flowing at high pressure

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Question 16

Veins carry blood towards the heart. They have valves to stop blood flowing the wrong way. All veins carry deoxygenated blood expect for the pulmonary vein. The veins carry blood at low pressures because they have thinner walls and less muscle than the arteries

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Question 17

Capillaries carry blood through the body to exchange gases and nutrients with the body tissue. They have very thin walls so substances can pass through easily. They have thin walls giving them a large surface area so that gas change can happen easy.

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Question 18

Your heart rate is the number of times your heart beats per minute and the resting heart rate is between 60 and 80 bpm

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Question 19

Your stroke volume is the amount of blood each ventricle pumps with each heart beat

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Question 20

Your cardiac output is the volume of blood pumped by a ventricle per minute

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Question 21

Cardiac Output= Heart rate x stroke volume

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Question 22

Red blood cells carry oxygen and this is very important as this is what helps an athlete when taking part in sport

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Question 23

Hamoglobin is the protein in red blood cells that stores oxygen and carbon dioxide

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