1. The functions of the cardiovascular system in physical education
The Heart
The route the blood takes
Blood vessels and their roles
Blood And its role in physical activity

2. The cardio vascular system
The cardio vascular system is made up of:
the heart,
three types of blood vessels
the blood itself
Functions of the
cardiovascular system
Transporting
Clotting
Temperature Regulation

3. Temperature Regulation Clotting
This shows the heart and the network of blood vessels that make up the cv system
These are vital during physical activity as the demand for oxygen increases.
Transport
Blood carrier oxygen and nutrients to working muscles
It carries away waste products – carbon dioxide & lactic acid
Temperature Regulation
This is done through the lumen of the blood vessels
When the body is to hot vasodilation (increasing blood flow to the skin surface) takes place
Clotting
Platelets in the blood form clots (which seal open wounds)
This protects the body against infections
During physical activity the risk of cuts and grazes increase

4. The Heart The heart is made up of 4 chambers
The hear pumps blood to two designations simultaneously:
To the lungs where it becomes oxygenated before returning to the heart
To the rest of the body, where it becomes deoxygenated as it delvers the oxygen it carries to the muscles and organs
The heart is made up of 4 chambers
The top two – Atria
The bottom two - Ventricles
The left side of the heart deals with
Oxygenated blood
The right side of the heart deals with
Deoxygenated blood

5. Aorta
Superior vena cava
Pulmonary Artery
Pulmonary Veins
Left atrium
Right Atrium
Semi-Lunar Valve
Tricuspid Valve
Bicuspid Valve
Right Ventricle
Left Ventricle
Inferior Vena cava
Septum

6. Heart Key terms This is the plural of “atrium”.
There are two atria in the heart
These are the upper chambers of the hear where the blood enters
Atria
There are two ventricles in the heart. These are the lower chambers of the heart from where blood exits
Ventricles
Blood containing a high concentration of oxygen
Oxygenated blood
Deoxygenated blood

7. The route the blood takes through the heart

8. Blood vessels and their role in physical activity
Arteries
Arteries carry blood away from the heart
Arteries carry oxygenated blood
Artillery blood pressure is high
The arteries have thick muscular walls
During exercise the arteries restrict blood to area that is not being used e.g. the digestive system
Capillaries look like a mesh wrapped around muscles and organs
Capillaries are very thin (one cell thick)
Gases can diffuse through the walls of the capillaries
Blood becomes deoxygenated at the capillaries
Capillaries are essential during physical activity because they allow oxygen to enter the muscles through diffusion
Capillaries
Veins carry blood back to the heart
Veins carry deoxygenated blood
Blood pressure is very low
To prevent blood flowing the wrong way veins have many one-way pocket valves
Veins have thinner walls than arteries
Veins

9. Blood and its role in physical activity
Red Blood Cells
Red blood cells contain haemoglobin
Haemoglobin is a substance that allows oxygen to be bound and carried
Red blood is critical to all sports and physical activity
It ensures muscles have the oxygen to perform efficiently
Activities that are impacted the most by the work of red blood cells are endurance events

10. Blood and its role in physical activity
White Blood Cells
White blood cells are part of the immune system
They travel in blood to fight disease and infection
They are responsible for keeping athletes healthy
Ensuring sportsman can train and compete

11. Blood and its role in physical activity
Platelets
Platelets clot blood and scab around the site of an injury to seal wounds
This is crucial to stop excessive bleeding and to heal the body quickly to prevent infection
This is important for sports performers as it will stop injuries becoming life threating
Ensuring sportsman can train and compete