Cardiovascular system Flashcards
What does the cardiovascular system consist of
The blood
The blood vessels
The heart
Function of blood in cardiovascular system
The medium that the gases, blood cells and nutrients are transported in
Function of blood vessels In cardiovascular system
The structures that carry the blood
Function of cardiovascular system
Transport of oxygen Transport of carbon dioxide Transport of nutrients Regulation of body temp Clotting of open wounds
What is transport of oxygen and how is this relevant to physical performance
Cardiovascular system transports oxygen around the body in the blood
It carries oxygen to the muscles and vital organs
Oxygen is needed in energy production for physical activity to continue working aerobically
What is transport of carbon dioxide and how is this relevant to physical performance
Carbon dioxide is produced as a by product during energy production
The cardiovascular system takes this away from muscles to get rid of it from the body
What is transport of nutrients and how is this relevant to physical performance
Nutrients are broken down from the food we eat and transported to the body in the blood
Athletes need macro and micro nutrients in order to preform well
What is clotting of open wounds and how is this relevant to physical perform
Platelets that are transported in the blood help to clot wounds by gathering at the site and forming a plug to prevent blood loss
Clotting blood is needed for instance if a performer falls and grazes their knee, so that they can stay on the field of play.
What is regulation of body temp and how is this relevant to physical performance
Heat is a byproduct of energy production
Temperature can either rise or drop
Body attempts to keep constant temperature
When does body temperature rise
Cardiovascular system
The blood vessels under the skin increase diameter (vasodilation)
To increase blood flow to the capillaries under the surface of the skin so heat can radiate from the skin
When does body temperature drop
Cardiovascular system
Blood vessels under the skin decrease in diameter (vasoconstriction) to decrease blood flow to the capillaries under the surface of the skin so less heat is lost by radiation
Which of the following is a function of the cardiovascular system
Breathing in air contains oxygen
Regulation body temp
Protection and muscle attachment
Breathing out air containing co2
Regulation body temp
Explain how the cardiovascular system helps regulate body temperature when the skier starts to get cold
Blood vessels close to the skin surface vasoconstrict to reduce the amount of warm blood going to the surface of the skin and heat being lost by radiation
Tricuspid valve
On the right side of the heart
Between the right atrium and right ventricle
Bicuspid valve
Left side of the heart
Between left atrium and left ventricle
Semilunar valve
Between between the ventricles and and the pulmonary artery and vein
What are valves and Why are they important
They prevent back flow by shutting behind blood that has passed
Vena cava
Main vein bringing deoxygenated blood back to the heart so it can be pumped to lungs to collect oxygen
Aorta
Main artery carries oxygenated blood to away from the left ventricle to take oxygen to working muscles
Pulmonary artery
Received deoxygenated blood from the right ventricle to take to the lungs to receive oxygen
Pulmonary vein
Brings oxygenated blood from lungs to left atrium
Right atrium
Receives deoxygenated blood from the body via the vena cava
Left atrium
Received oxygenated blood from the lungs via the pulmonary vein
Right ventricle
Receives deoxygenated blood from the right atrium via the tricuspid valve
Left ventricle
Received oxygenated blood from the left atrium via the bicuspid valve
Septum
The wall that separates the left and right sides of the heart
What is the order of the components assisting in the blood flow
Starting with deoxygenated blood going back to heart
Vena cava Right atrium Tricuspid valve Right ventricle Semilunar valve Pulmonary artery Lungs Pulmonary veins Left atrium Bicuspid valve Left ventricle Semilunar valve Aorta Muscles
