Following are the stages of pathway for conduction of an action potential through the heart:A. AV bundleB. Purkinje fibresC. AV nodeD. Bundle branchesE. SA nodeChoose the correct sequence of pathway from the options given below :

1. E-A-D-B-C

2. E-C-A-D-B

3. A-E-C-B-D

4. B-D-E-C-A

Doubtly Asked 30 Oct 2026 NEET UG 2024 Practice test neet Save WhatsApp Report

1 answer

Best answer

Answer: 2. E-C-A-D-B

Key idea: the impulse follows the heart's conducting system in a fixed order.

SA node (pacemaker, E) → AV node (C) → AV bundle (A) → bundle branches (D) → Purkinje fibres (B).

This gives E-C-A-D-B, option 2.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

Was this answer helpful?