Impulse of heart beat originates from

  • A
    $SA-$node
  • B
    $AV-$node
  • C
    Vagus nerve
  • D
    Cardiac nerve

Explore More

Similar Questions

Right atrium: Coronary sinus:: Left atrium: . . . . . . .

During each cardiac cycle, prominent sounds are produced which can be easily heard through a stethoscope. They are

The $SAN$ (Sino-atrial node) can generate action potentials at a rate of:

Purkinje fibres are present in

All arteries carry oxygenated blood, except:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo