Normal diastolic pressure in a young man is about (in $,\text{mm Hg}$)

In a standard $ECG$,one of the following functions of its components is not correctly interpreted.

$ECG$ depicts the depolarization and repolarization processes during the cardiac cycle. In the $ECG$ of a normal healthy individual,one of the following waves is not represented?

In an $ECG$,the depolarization of atria is indicated by

What is the normal blood pressure in a healthy human?

Given below is the diagrammatic representation of a standard $ECG$. Label its different peaks.