Heart
How many chambers of the heart are there?
4
What is the purpose of capillaries?
Transfer site of oxygen and carbon dioxide
What is the cardiovascular system made up of (3)
Heart, blood, blood vessels
What is your heart rate?
Times the heart beats per minute
Name one thing that makes up blood?
Red blood cells
White blood cells
Plasma
Platelets
What is the muscle called that separates the left and right side of the heart
Septum
Which type of blood vessel has valves?
Veins
Name a function of the CV system
Temperature regulation
Prevention of injury
Transfer of resources
Calculate your maximum heart rate
220 - 14 = 206
220 - 13 = 207
What is the purpose of white blood cells
Prevent infection and virus by killing them
Which valve separates the right top and bottom chambers of the heart?
Tricuspid
Which blood vessel has a small lumen?
Arteries
What is vascular shutting?
Movement of blood from one area of the body to another
amount of force your blood vessels can apply
What is the purpose of platelets
To clot blood to stop bleeding and prevent infections getting in with a scab
What are the valves called that control the flow out of the heart to the lungs/body?
Semi-lunar
Which blood vessel carries oxygenated blood and which carries deoxygenated blood?
Oxygenated - arteries
Deoxygenated - veins
Explain and give and example of vasoconstriction
Decrease in size of blood vessels lumen
- Blood to internal organs when cold
- Blood away from non-working muscles
What is stroke volume?
Amount of blood pumped out the left ventricle per BEAT
How can plasma affect blood and give an example
Transports the blood cells round the body, if the body is sweating the plasma reduces and the blood becomes thicker (more viscous)
Which blood vessel brings the blood back from the body into the RA?
Vena Cava
Which blood vessel has a pulse in it flow and why?
Arteries have a pulse as they are coming straight from the heart so it is the heart beat of it pushing the blood out
Explain and give one example of vasodilation
The increase in size of the blood vessels lumen
- Decrease body temp by allowing more heat out
- Blood to the working muscles
What is cardiac volume AND the calculation
Amount of blood pumped out the left ventricle per minute
CO = SV X HR
How do red blood cells carry oxygen?
Hint: they form a chemical bond
Red blood cells have hemoglobin (which makes them red) which bonds with oxygen to form oxyhaemoglobin