NEET2019ZoologyBody Fluids and CirculationActual
Match the Column - I with Column - II: Column - I Column II a P - wave i Depolarisation of ventricles b QRS complex i i Repolarisation of ventricles c T - wave i i i Coronary ischemia d Reduction in the size of T - wave i v Depolarisation of atria v Repolarisation of atria Select the correct option
Options
- Aa - i v ; b - i ; c - i i ; d - i i i
- Ba - i v ; b - i ; c - i i ; d - v
- Ca - i i ; b - i ; c - v ; d - i i i
- Da - i i ; b - i i i ; c - v ; d - i v
Correct answer
A. a - i v ; b - i ; c - i i ; d - i i i
Step-by-step solution
The first deflection is the P wave linked with right and left atrial depolarization. A wave of which is invisible because of low amplitude. The normal P wave is no higher than 2.5 mm (two-and-a half1-mm-divisions) tall and less than 120 ms (three 1-mm-divisions) in width in any lead. The second wave is the QRS complex. The complex has a series of 3 deflections that reflects current associated with right and left ventricular depolarization. By convention, the first deflection in the complex, if negative, is called a