Flashcards in 1.2 The structure and function of the cardio-respiratory system Deck (57)
What does cardio-respiratory stand for?
The interaction of the heart and lungs to supply oxygen and remove carbon dioxide
What are the three functions of the cardiovascular system?
Transportation of oxygen, carbon dioxide and nutrients
Helps clot the blood
Controls body temperature
What part of the blood allows the blood to clot?
What is the name given to the process of a blood vessel narrowing to help warm the body up?
What is the name given to the process of a blood vessel widening to help cool the body down?
Name the different components of the cardiovascular system
What is the name of the blood vessel the takes blood from the lungs to the heart?
What is the name of the blood vessel that takes blood from the heart to the lungs?
What is the name of the blood vessel that take blood away from the heart to the rest of the body?
What is the name of the blood vessel that takes blood from the rest of the body to the heart?
Name the valve between the ventricles and the pulmonary blood vessels
Semi lunar valve
Name the valve between the right atrium and right ventricle
Name the valve between the left atrium and the left ventricle
What is the name given the the part of the heart that separates the left and right side?
Does the aorta carry oxygenated or deoxygenated blood
Does the vena cava carry oxygenated or deoxygenated blood?
Does the pulmonary artery carry oxygenated or deoxygenated blood?
Does the pulmonary vein carry oxygenated or deoxygenated blood?
What is blood pressure?
The pressure of the blood against the walls of the blood vessels.
The phase of the heartbeat when the heart contracts and pumps blood from the ventricles
The phase of the heart beat when the heart muscles relaxes and the heart fills with blood
During exercise what happens to blood pressure?
Why does blood pressure increase during exercise?
More blood is being pumped around the body therefore there is more pressure of the blood vessel walls
Describe the structure and function of an artery
Carry blood away from the heart
Thick walls and more elastic
Describe the structure and function of a vein
Carry blood towards the heart
Describe the structure and function of a capillary
One cell thick
Where gaseous exchange takes place
Link arteries and veins
What is the name given to the process of redirecting blood around the body?
When we exercise what happens to blood flow to our organs?
What happens to the blood vessels going to our organs when we exercise and why?
They vasoconstrict to reduce the amount of blood going to the organs. This means more blood can go to the working muscles.