NEET UG 2026 · Zoology · Question 115
NEET 2026 Zoology, question 115
Question 115 of the NEET 2026 paper (re-exam) is a Zoology question from Body Fluids and Circulation. Its idea, SA Node Intrinsic Firing Rate, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.
Updated 2026-10-08
Q115 · Zoology
The number of action potentials generated by sino-arterial node (SAN) in a healthy human is ________ per minute.
- 120-30
- 270-75Official answer
- 3100-110
- 4120-140
Official answer: option 2 · NTA final answer key
Same idea
The only question on SA Node Intrinsic Firing Rate
No other NEET paper from 2017–2026 tested this exact idea.
SA Node Intrinsic Firing Rate: every question and how it was framed
The chapter
Body Fluids and Circulation in ten years of NEET
21 questions from 2017–2026, asked in 10 of 10 papers, about 2.0 a paper. Cardiac Cycle alone had 9.