MCQ
Cornea transplantation is outstandingly successful because:
- ACornea is easy to preserve.
- BCornea is not linked up with blood vascular and immune systems.
- CThe technique involved is very simple.
- DCornea is easily available.
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$I$. $ECG$ is of a great clinical significance
$II$. Electrocardiograph is the recording of electrical changes in cardiac muscles during the cardiac cycle
$III$. To obtain a standard $ECG$, a patient is connected to the machine with $3$ electrical electrodes (one to each wrist and to the left ankle)
$IV$. Normal activities of the heart are regulated intrinsically
$V$. Electrocardiogram is the electrical activity of heart
The option with correct statements is