Following are the stages of pathway for conduction of an action potential through the heart Choose the correct sequence of pathway from the options given below
- E-C-A-D-B
- A-E-C-B-D
- B-D-E-C-A
- E-A-D-B-C
Answer
(1) E-C-A-D-B
Solution
The action potential is generated by the SA node (pacemaker) (E), passes to the AV node (C), then to the AV bundle (bundle of His) (A), which divides into the right and left bundle branches (D) that end in the Purkinje fibres (B).
Sequence: E-C-A-D-B.
Answer: (1)