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STD 11 - 15. Body fluids and criculations — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 15. Body fluids and criculations1 Mark
MCQ
Heart beat originates from
  • ✓
    Pacemaker
  • B
    Cardiac muscles
  • C
    Left atrium
  • D
    Right ventricle
✓

Answer

Correct option: A.
Pacemaker
a
(a) Cardiac impulse $(Heart\ beat)$ normally originate from the pace maker $ (S.A.\ node$)

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