When the heart of a frog is removed,it will:

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Question

(D) The heart of a frog is myogenic,meaning the heartbeat originates from within the heart muscle itself,specifically from the pacemaker cells (sinus

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Continue to beat for a long time if kept moist

Vedclass · Answer

(D) The heart of a frog is myogenic,meaning the heartbeat originates from within the heart muscle itself,specifically from the pacemaker cells (sinus venosus). Because it is myogenic,the heart can continue to beat even after being removed from the body,provided it is supplied with appropriate nutrients and kept in a moist environment to prevent desiccation. If kept dry,the cells will quickly lose their ionic balance and die,causing the heart to stop beating. Therefore,the correct observation is that it will continue to beat for a long time if kept moist.

Column-$I$	Column-$II$
$a$. Superior Vena Cava	$p$. Carries deoxygenated blood towards the lungs
$b$. Inferior Vena Cava	$q$. Carries oxygenated blood away from the lungs
$c$. Pulmonary Artery	$r$. Brings deoxygenated blood from lower body parts to the right atrium
$d$. Pulmonary Vein	$s$. Brings deoxygenated blood from upper body parts to the right atrium

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