Physiology During inhibition of SA node by vagal stimulation, which of the following occurs: A Acting on K+ channels resulting in T efflux B Acting on K+ channels resulting in T influx C Acting on Ca2+channels resulting in T efflux D Acting on Ca2+ channels resulting in T influx 💡 Explanation During inhibition of SA node by vagal stimulation, which of the following occurs: ✓ Correct Answer: A. Acting on K+ channels resulting in T efflux