What is the need for a circulatory system?

What is a closed circulatory system.

Give four differences between arteries and veins

Give the names of the three parts of blood vessels

Give the function of each part of blood vessels

What vessel does the blood enter the right side of the heart at?

What vessel does the blood leave the right side of the heart ar?

What blood vessel does the blood enter the left side of the heart at?

Where does the blood leave the heart?

Where are the bicuspid and tricuspid valves located?

Where are the semi lunar valves located?

Why are the walls of the atria thin?

Why is the wall of the left side of the heart thicker than the right.

Why are the walls of ventricles thick?

Name the two circuits of the body.

What circuit does the right side of the heart control and where does the circuit travel to?

What circuit does the left side of the heart control and where does the blood travel to?

What are the advantages of double circulation compared with single circulation?

Give an example of animals with a single circulatory system

What is a portal system?

Give an example of a portal vein in the human body.

What organs does this portal system connect?

What is contained in high amounts in this system.

What supplies the heart with blood?

What cavity is the heart located in?

How can the heart rate be altered when the pacemaker is in control the rate of heartbeat?

What is a pulse?

What is blood pressure?

What is systole?

What is diastole?

How does excercise effect the heart?

How is blood pressure measured?

What happens as a result of high blood pressure?

How can diet be bad for the heart?

Why is smoking cigarettes bad for the heart?