Question

Read the passage carefully and answer the questions that follow.
The work of the heart can never be interrupted. The heart's job is to keep oxygen-rich
blood flowing through the body. All the body's cells need a constant supply of oxygen
especially those in the brain the brain cells live only four to five minutes after their
The heart is a specialised muscle that serves as a Pump. This Pump is divided into four
chambers connected by tiny doors called valves. The Chambers work to keep blood
oxygen is cut off, and then death come to the entire body.
flowing around the body in a circle.
At the end of each circuit, veins carry the blood to the right Atrium, the first of the four
chambers
Two-fifth oxygen by then is used up and it is on its way back to the lung to pick up a
fresh supply and to give up the carbon dioxide it has accumulated. From the right
Atrium, the blood flows through the tricuspid valve into the Second Chamber, the
right ventricle.
The right ventricle contracts when it is filled, pushing the blood through the Pulmonary
English
artery, which leads to the lungs. In the lungs the blood gives up its carbon dioxide and
picks up fresh Oxygen. Then it travels to the third chamber, the left Atrium. When this
chamber is filled, it forces the blood through the valve to the left ventricle. From here it
is pushed into a big blood vessel called the aorta and sent around the body by way of
arteries.
Heart disease can result from any damage to the heart muscle, the valves or the
pacemaker. If the muscle is damaged, the heart is unable to pump properly. If the
valves are damaged, blood cannot flow normally and easily from one chamber to
another, and if the pacemaker is defective, the contractions of the chamber will
become un-coordinated.
Until the 20th century, few doctors dared to touch the heart. In 1953, all this changed.
After twenty years of work, Doctor John Gibbon in the USA had developed a machine
that could take over temporarily from the heart and lungs. Blood could be routed
through the machine, bypassing the heart, so that surgeons could work inside it and
see what they were doing. The era of open-heart surgery had begun.
In the operating theatre, it gives surgeons the chance to repair or replace a defective
heart. Many patients have had plastic valves inserted in their heart when their own
were faulty. Mary people are being kept alive with tiny battery-ope ated peacemakers;
none of these repairs could have been made without the heart-lung machine. But
valuable as it is to the surgeons, the heart-lung machine has certain limitations. It can
be used only for a few hours at a time because its pumping gradually damages the
blood cells.
QUESTIONS:
(a) On the basis of your reading of the above passage, make notes on it using headings
and sub-headings. Use recognisable abbreviations wherever necessary (minimum 4)
Use a format you consider suitable. Also supply an appropriate title to it
(b) Write a summary of the above passage in about 80 words?​

Answer 1

Answer:

Summer is going to be a little

Explanation:

Mark me brilliant