1. Leaving Certificate Biology Circulatory System 2 EQ iQuiz SECOND Press the F5 Key to Begin, Then click on this Blue Box FIRST In PowerPoint 2007 if you see a Security Warning click HERE on Options… and then click on  Enable this content

2. The human circulatory system may be described as... A closed system A shut systemA cardiac system An open system

3. What is the organ that pumps the blood called? Lung LiverHeart Brain

4. What are the vessels that carry blood away from the heart called? CapillariesArteries VeinsLymphatics

5. Name the vessels that link arteries to veins. ValvesCapillaries AtriaVentricles

6. What is the force the blood exerts against the wall of a blood vessel? Blood vesselsBlood cells Blood plasmaBlood pressure

7. What type of blood vessels contain valves and do not have pulse? CapillariesVeins ArteriesLymphatics

8. The blood circuit that carries blood to and from the lungs is called the … Portal circuitSystemic circuit Pulmonary circuitRenal circuit

9. What is a blood pathway that begins and ends with capillaries? Circulatory systemPortal system Coronary systemLymphatic system

10. The half moon shaped structures found at the base of the aorta and pulmonary artery are … Semi lunar valvesTricuspid valves Bicuspid valvesValves

11. What is the blood vessel that takes blood from the intestines to the liver called? Hepatic veinHepatic artery Hepatic portal veinRenal artery

12. The circuit transporting blood to and from the general body is called the … Pulmonary circuitSystemic circuit Hepatic circuitRenal circuit

13. In which chamber of the heart is the (SA node) or pacemaker located? Right ventricleLeft ventricle Left atriumRight atrium

14. Which chamber of the heart has the greatest amount of muscle in its wall? Right ventricleLeft ventricle Right atriumLeft atrium

15. Which of these chemicals, that are present in cigarette smoke, prevents the blood from transporting oxygen? Carbon dioxideBenzene Carbon monoxideTar

16. Which of these blood vessels contains the least amount of urea? Renal arteryRenal vein Hepatic veinHepatic artery

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