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VII. Give the words of the opposite meaning:
to exclude, to result in, to diminish, gradually, slight, to drop, to suffer from, frequently, to arrest
VIII. Translate into English:

1. 
   tug’ma yurak porogi; 2. effektiv choralar ko’rish; 3. yurakni to’satdan to’xtab qolishi; 4. bo’lmachalarning urishi (titrashi); 5. qon ta’minotining buzilishi.
   

9. 
   Answer the following questions:
   

1. 
   How many litres of blood does the human heart pump per minute at rest? 2. How many litres of blood does the human heart pump per minute on great physical exertion? 3. How many times does the human heart contract within 70 years of life? 4. How many litres of blood does the human heart pump within 70 years of life? 5. In how many seconds does the blood make complete circle in our body at rest? 6. How long can the man live without water and without food?
   

10. 
    Read Text F. Which of the described methods have you got interested in:
    

Text F. Methods Used in Cardiosurgery

In performing the operations on the contracting heart there is danger of the impairment of cardiac function and partial arrest of blood circulation, resulting in the damage to some organs, brain cells in particular.

Such danger is eliminated when artificial blood circulation apparatus called heart-lungs is used during the operation. By using the artificial blood circulation apparatus the heart is excluded from the blood circulation and the surgeon is able to work on the “dry” heart for a longer period of time achieving better results.
Hypothermia is another method used in heart operations. When the patient in under hypothermia the surgeon can eliminate congenital or developed heart defects without the loss of the patient’s blood during the operation.
The method of occlusion consists of bandaging all the vessels carrying blood to and from the heart just before making an incision on the cardiac wall. When the method of occlusion is applied the surgeon evacuates from the heart that amount of blood which is inside its cavities (in the adult it is about 100-150 ml) and performs the necessary operation to eliminate the cardiac defect.

11.