Exit Quiz #10 Answers

1. What is the function of the chordae tendinae?
Anchor the AV valves in the closed position so blood does not flow backwards into the atria when the ventricles contract.

2. Serous fluid is found between which two layers surrounding the heart?
Parietal pericardium and visceral pericardium/epicardium

3. Which veins carry oxygenated blood?
Pulmonary

4. Which artery supplies the cerebellum, pons, and inner ear?
Basilar

5. Number the following steps of heart contraction in order of first (1) to last (5)
4       Impulses pass through bundle of His and Purkinje fibers
1       S-A node fires
5       Ventricles contract
3       A-V node fires
2      Atria contract