1. Match the words with their synonyms or definitions 1. 2. 3. 4. action potential trace propagation generation a. b. c. d. 5. 6. 7. 8. 9. to depict pacemaker to induce conduction to proceed e. f. g. h. i. 10. node 11. septum 12. to occur 13. amalgamation j. k. l. m. to describe to cause “production” An electrical device that has electrodes attached to the heart to electrically stimulate the heart to beat normally. the transmission of something, e.g. an electrical signal to happen a small mass of tissue in the form of a swelling or a knot a dividing wall A brief electrical signal transmitted along a nerve or muscle fiber following stimulation to continue the combination of two or more things, merging spreading a visible mark, such as a footprint; evidence or an indication of the former presence or existence of something 2. Listen and answer the questions: The contraction of the heart muscle is caused by ____________. The abbreviation for electrocardiogram is ________ or _________. What are the individual phases of electrocardiogram and what happens during them. 3. Complete the gaps with only ONE most suitable word: Cardiovascular system The _________ (1) important muscle in the body is the heart. Without the heart and its cardiovascular (circulatory) system, human life _________ (2) not be possible. The heart is roughly the _________ (3) of a fist. It contracts _________ (4) an average rate of 72 times per minute or nearly 38,000,000 times _________ (5) year. These rhythmic contractions are _________ (6) the pulse rate and can _________ (7) felt in the radial artery of the wrist. The human heart consists of four _________ (8), two atria (or auricles) and two _________ (9). Each is made _________ (10) of several layers of cardiac muscle arranged in circles and spirals. During the contraction phase, called the systole, oxygenated blood _________ (11) pumped out of the left part of the heart into the aorta and from there through the arteries to all organs of the body. Carbon _________ (12), a waste product of this process, is collected in the blood. The blood is passed back to the right atrium through the _________ (13), where the deoxygenated blood is led to the heart, and the vena cava during the ________ (14) (or relaxation) period of the heart. From there, it is pumped into the right part of the heart and to the pulmonary artery to be sent to the lungs, where CO2 is removed and oxygen is added. The rest of the system consists of _________ (15) (small arteries), venules, and capillaries, the smallest of blood _________ (16). In total, _________ (17) are more than 70,000 miles of them in the human body. The blood is made up of two parts - plasma and _________ (18). The plasma is a clear, yellowish liquid _________ (19) transports the 25 trillion erythrocytes and the many fewer white cells (_________ (20)). The white cells are important _________ (21) fighting disease. _________ (22) in the blood permit clotting to take place at the site of a wound, thus preventing excessive bleeding. 4. Listening: answer the following questions. Where did he have the pain? What symptoms did he have? When did they call the ambulance? Did he have any major surgery? What are the pros and cons of the treatment the doctor suggests? D: He’s actually OK. He is a bit more stable. W: That’s a _____________. W: We _____________ (sit) at home and he _____________ (start) getting this pain in the centre of his chest. He _____________ (have) it several times before and he _____________ (use) the spray thing he has got. W: And so he _____________ (give) himself a few puffs but the pain wouldn’t go and I _____________ (can) see that he _______________ (get) breathless and agitated… D: What we’re going to do, with your _____________ , is to give your husband something to help get rid of any _____________ … D: By the looks of it, it’s all gone very well and he’ll be _____________ in no time. …