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(NB!!! Click on the down arrow to see the other options).

1.)Which of the following graphs best represents the average pressure of blood in the different blood vessels ?

2)When the heart is in a state of diastole it is

3) The valve between the left atrium and left ventricle is called a

The following five questions are based on the diagram of the heart below right.

4)Label 1 points to the

5)Blood entering the heart at 1 has come from

6)The blood vessel at 2 is the

7) Label 3 points to the

8) Blood coming from the lungs was injected with a colour dye. In which of the following orders would the blood travel through the cavities of the heart?

9)The muscle in the heart is made up of

10) What is the function of the pacemaker?