Question

antur
7
Listening
Speaking
✓ Reading
✓ Writin
43 Make notes or write a summary of the following passage.
Heart disease can result from my damage to the heart muscle the vales or the pacemaker If the
muscle is damaged the heart if unable to pump property If the valves are damaged blood cannot
flow normally and easily from one chamber to another and of the pacemaker is defective, the
contractions of the chambers will become un-coordinated Unul the twentieth century, few doctors
dared to touch the heart in 1953 all this changed after twenty years of work Dr John Gibbon n the
USA had developed a machine that could take over temporanly from the heart and lungs Blood
could be routed through the machine bypassing the heart so that surgeons could work inside and
See what they were doing the era of open heart surgery had begun in the operation theatre, it
gives Surgeons the chance to repair or replace a defective heart Many patients have had plastc
valves inserted in their hearts when their own was faulty Many people are being kept alive with tiny
battery operated pacemakers none of these repairs could have been made without the heart-tung
machine But valuable as it is to the surgeons, the heart-lung machine has certain limitations
Toe
regla
8​

Answer 1

Answer:

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