Test Review Circulatory System Chapters

Transcription

1 Test Review Circulatory System Chapters The tissue that forms the tight fitting sac around the heart is the a. parietal pericardium c. myocardium b. visceral pericardium d. endocardium 2. Which of the following represents the correct sequence of parts through which blood moves in passing from the vena cava to the lungs? a. right atrium, pulmonary valve, right ventricle, tricuspid valve b. right atrium, tricuspid valve, right ventricle, pulmonary valve c. tricuspid valve, right atrium, pulmonary valve, right ventricle d. pulmonary valve, right atrium, tricuspid valve, right ventricle 3. When ventricular walls contract a. the bicuspid valve opens and the tricuspid valve closes b. the tricuspid valve opens and the bicuspid valve closes c. the bicuspid and tricuspid valves close d. the bicuspid and tricuspid valves open 4. Which of the following structures consist of self-exciting tissue capable of sending nervous message? a. chordae tendineae c. sino-atrial node b. papillary muscle d. atrial syncytium 5. The correct sequence of parts that function to carry cardiac impulses is a. A-V node, S-A node, Purkinje fibers, A-V bundle b. A-V node, A-V bundle, Purkinje fibers, S-A node c. S-A node, Purkinje fibers, A-V node, A-V bundle d. S-A node, A-V node, A-V bundle, Purkinje fibers 6. Parasympathetic fibers carry messages to the heart that a. speed up heart rate c. dilate the heart b. slow up heart rate d. contract the heart 7. Which type of blood vessel holds the greatest pressure? a. artery c. capillary b. arteriole d. vein 8. The inner most layer of the heart is the a. endocardium b. myocardium c. epicardium d. pericardium 9. The blood pressure in the arteries is greatest during a. arteriole systole c. ventricular systole b. arteriole diastole d. ventricular diastole 10. The smallest of the blood vessels are the a. veins b. arterioles c. capillaries d. venules

2 11. The vessel responsible for the gas exchange at the alveoli of the lung is the a. vein b. arteriole c. capillary d. venule 12. Valves a. are found in the walls of arteries b. can become enlarged c. direct the flow of blood d. can reverse direction and let blood go the opposite way 13. Blood pressure a. is partly maintained by the pumping action of the heart b. decreases when exercising c. rises during sleep d. increased when the ventricles are diastole 14. With each ventricular systole a. the blood pressure decreases b. the blood pressure increases c. there is no change in blood pressure d. the cardiac output decreases 15. The space between the lungs where the heart is found is called the a. pleural cavity c. periosteum b. mediastinum d. abdominal cavity 16. The record of an electrical current generated by the heart muscle can be detected by a a. sphygmomanograph c. electroencephalograph b. stethoscope d. electrocardiogram 17. The opening between the ventricles in a fetal heart is the a. foramen oval c. bicuspid opening b. septum d. endocardium 18. The heart is enclosed in a sac of tissue called the a. septum c. myocardium b. pericardium d. cuspid 19. The part of the heart that divides the right from left is the a. septum c. myocardium b. pericardium d. cuspid 20. The regular heart beat originates in the a. A-V bundle c. Purkinje fibers b. A-V node d. S-A node 21. The coronary vessels supply the a. brain c. myocardium b. lungs d. spleen

3 TRUE OF FALSE 22. The semi-lunar valves have no chordae tendineae. 23. Erythrocytes are thicker at the rim than is the middle. 24. The pacemaker is located in the right atrium. 25. Arteries have thicker muscle walls that veins. 26. The bicuspid valve is located between the left atrium and the right ventricle. 27. Capillaries lie between arteries and veins and are responsible for gas exchange 28. Diastole is the filling stage of the heart 29. The epicardium provides a protective layer and is composed of the visceral pericardium. 30. Chordae tendineae are attached to the pulmonary semi-lunar valve and function to prevent blood from being prematurely pumped from the heart. 31. A cardiac cycle constitutes a complete heartbeat. 32. The muscle cells of the ventricles contract in sequence from the top to the apex of the heart. 33. In vasodilation, the muscle fibers contract and reduce the diameter of the vessel. 34. Fibrillation of the atria is usually fatal 35. An aneurysm is a blood clot that moves through the blood vessels. 36. A thrombus is a moving blood clot. 37. Fibrillation is a variation of the normal heartbeat characterized by rapid, uncoordinated muscle contractions. 38. Vericose veins is characterized by unusual breaks in valves in the veins of the legs. 39. Swelling as a result of inflammation is due to an increase of permeability of arteries. 40. When taking blood pressure, the high number refers to the heart cycle during diastole. 41. Immunity can occur when a person receives a vaccine of weakened or dead viruses that trigger the body to reproduce antibodies.

4 Use the figure below to answer questions Match the letter of the correct response a. qrs wave b. u wave c. t wave d. p wave Ma Matching Questions Match the following answers with the corresponding diagram. a. ventricular fibrillation b. atrial flutter c. normal d. bradycardia e. trachycardia

5 On the space provided on the answer sheet answer the following questions Flow chart question # List the pathway of blood through the heart from entering the vena cava to leaving the aortic arch. (include all chambers, valves, organs, and blood vessels) Short Answer essay questions # (use complete sentences) 51. Describe the physiological reason why the aorta has a thicker muscle wall than the pulmonary artery. (2) 52. Describe the physiological reason why the left ventricle has a thicker muscle wall than the right ventricle. (2) 53. Describe the physiological reason why the repolarization of the atrium does not show up in an EKG (2) 54. Describe how the four factors discussed in the book effect blood pressure. (4) Identify the blood vessel type questions (overhead)

6 Label the following drawings Questions (also on overhead)