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

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 15. Body fluids and criculations1 Mark
MCQ
In man artificial pacemaker is implanted due to defects in
  • ✓
    $SA$ node
  • B
    $AV$ node
  • C
    Mitral valve
  • D
    Purkinje fibres
✓

Answer

Correct option: A.
$SA$ node
a
(a) Since $S-A$ node acts as a pacemaker.

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