Match List I with List II :List IList IIA. P | vedclass

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$(A)$ The correct matching is as follows:$A$. $P$ wave represents the electrical excitation (or depolarisation) of the atria, which leads to the contr

Vedclass · Accepted Answer

$A-III, B-II, C-IV, D-I$

Vedclass · Answer

$(A)$ The correct matching is as follows:$A$. $P$ wave represents the electrical excitation (or depolarisation) of the atria, which leads to the contraction of both the atria. Thus, $A-III$.$B$. $QRS$ complex represents the depolarisation of the ventricles, which initiates the ventricular contraction. Thus, $B-II$.$C$. $T$ wave represents the return of the ventricles from an excited to a normal state (repolarisation). The end of the $T$ wave marks the end of systole. Thus, $C-IV$.$D$. $T-P$ gap represents the period when the heart muscles are electrically silent, occurring between the end of the $T$ wave and the beginning of the next $P$ wave. Thus, $D-I$.Therefore, the correct sequence is $A-III, B-II, C-IV, D-I$.

List $I$	List $II$
$A$. $P$ wave	$I$. Heart muscles are electrically silent.
$B$. $QRS$ complex	$II$. Depolarisation of ventricles.
$C$. $T$ wave	$III$. Depolarisation of atria.
$D$. $T-P$ gap	$IV$. Repolarisation of ventricles.

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