Which one of the following is a matching pair?

  • A
    Lubb - Sharp closure of $AV$ valves at the beginning of ventricular systole
  • B
    Dup - Sudden opening of semilunar valves at the beginning of ventricular diastole
  • C
    Pulsation of the valves in the blood vessels - radial artery
  • D
    Initiation of the heart beat - Purkinje fibres

Explore More

Similar Questions

In humans,blood flows from the posterior vena cava into the diastolic right atrium due to:

Muscles of the heart are

Blood circulation was discovered by

Which structure first generates an action potential?

In the heart, as the action potential reaches the $AV$ node from the $SA$ node, there is a delay of the action potential. This delay is important because:

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