PDF Pretest: Circulatory System

PRETEST: CIRCULATORY SYSTEM I. MCQs: Circle the correct answer. 1. In the heart, the mixing of oxygen-rich and oxygen-poor blood is prevented by the a.mitral valve. b.tricuspid valve. c.septum. d.pericardium. 2. What type of muscles are found in the Heart? a. Smooth muscle b. Skeleta...

PRETEST: CIRCULATORY SYSTEM I. MCQs: Circle the correct answer. 1. In the heart, the mixing of oxygen-rich and oxygen-poor blood is prevented by the a.mitral valve. b.tricuspid valve. c.septum. d.pericardium. 2. What type of muscles are found in the Heart? a. Smooth muscle b. Skeletal muscle c. cardiac muscle d. none of the above 3. Which of these is a function of the circulatory system? a. Removing wastes from tissues b. Supplying oxygen to body cells c. transferring nutrients and other things needed in the body d. All of the above 4. Which of the following lists is in an incorrect order? a. artery capillaries vein b. Right ventricle left ventricle aorta c. Right atrium left Atrium pulmonary artery d. Pulmonary artery lungs pulmonary vein 5. Which of these is a function of the circulatory system? a. Removing wastes from tissues b. Delivering carbon dioxide to cells for cellular respiration c. Transferring impulses from one cell to another d. All of the above ____ 6. Compared with the walls of arteries, the walls of capillaries a.are thicker. b.are thinner. c.lack valves. d.have more resistance. 7. Which of the following is a function of blood? a.fight infection b.regulate body temperature c.transport nutrients d.all of the above 8. How many valves are in a human heart? a. two b. three c. four d. six 9. The tricuspid valve has ________ flaps that open and close. a. one b. two  c. three d. four 10. Which of the following pathways is the largest of the circulatory system? a.systemic circulation b.pulmonary circulation c.capillary beds d.coronary circulation __ II. Filling in blanks Fill in the blanks in the following sentences. The circulatory system allows blood to go to every part of the ___________. Let’s follow a drop of blood through one full cycle in the body. Let’s start in the ________ ventricle, as the heart contracts the blood is sent out through the ____________ as it goes to the body. It might go to any part of the body. Let’s imagine it goes to the stomach. It goes there through smaller and smaller ______________ until eventually it goes into the microscopic blood vessels that are the ___________________. Here, the blood can deliver the oxygen it was carrying and receive in the exchange some ___________ ________________. From there it will come back to the heart through the inferior ________ ________. It will re-enter the heart in the right atrium and move down to the right _________________, before being sent to the lungs through the _______________ artery. Once it arrives at the lungs, once again it will get into capillaries for another gas exchange. This time the blood will let go of the carbon dioxide and receive ______________ in return. Finally, through the ________________ _______, the drop of blood will come back to the left __________ before coming down to the left ________________ and starting its journey all over. III. Labeling