NEET-XI-Biology
P1 year:2019
- #105Match the Column-I with Column-II
Column-I Column-II
(a ) P - wave (i) Depolarisation of ventricles
(b) QRS complex (ii) Repolarisation of ventricles
(c) T - wave (iii) Coronary ischemia
(d) Reduction in the (iv) Depolarisation of size of T-wave atria
(v) Repolarisation ofatria
Select the correct option.
( a ) (b) ( c ) (d)
(1) (iv) (i) (ii) (iii)
(2) (iv) (i) (ii) (v)
(3) (ii) (i) (v) (iii)
(4) (ii) (iii) (v) (iv)digAnsr: 1Ans : ( 1 )
Sol. In ECG P-wave represents depolarisation of
atria. QRS complex represents depolarisation
of ventricles. T-wave represents
repolarisation of ventricle i.e. return from
excited to normal state. Reduction in the size
of T-wave i.e. if the T-wave represents
insufficient supply of oxygen i.e. coronary
ischaemia.