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Model Paper 7 — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETModel Paper 74 Marks
MCQ
Cardiac activity could be moderated by the autonomous neural system. Tick the correct answer:
  • A
    The parasympathetic system decreases the heart rate but increase stroke volume
  • ✓
    The sympathetic system stimulates heart rate and stroke volume
  • C
    The parasympathetic system stimulates heart rate and stroke volume
  • D
    The sympathetic system decreases the heart rate but increase stroke volume
✓

Answer

Correct option: B.
The sympathetic system stimulates heart rate and stroke volume
(B)The sympathetic system stimulates heart rate and stroke volume
Explanation:
Neural signals through the sympathetic nerves (part of ANS) can increase the rate of heart beat, the strength of ventricular contraction and thereby the cardiac output.

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