Question

Origin of heart beat and its conduction is correctly represented by
(1) AV node ï® Bundle of His ï® SA node ï® Purkinje fibres
(2) SA node ï® Purkinje fibres ï® AV nodeï®ï  Bundle of His
(3) Purkinje fibres ï® AV node ï® SA nodeï® Bundle of His
(4) SA node ï® AV node ï® Bundle of Hisï® Purkinje fibres

Answer 1

(4) SA node AV node Bundle of his purkinje fibres

Answer 2

the correct representation of conduction of impulse is shown in option (4) that is SA Node-AV Node-Bundle of His-Purkinje Fibers.

heart conduct impulses that originate from sa node than travel to av node through av node impulse travel to bundle of his and then to purkinje fibers.

hope so this will help u....