Answer: Tricuspid valve.
- A Tricuspid valve
- B Bicuspid valve
- C Semilunar valve
- D Mitral valve
Correct answer: A. Tricuspid valve
Explanation: The tricuspid valve, made of three flaps, guards the opening between the right atrium and right ventricle.
A single ECG cycle: the P wave marks atrial depolarisation (contraction signal), the large QRS complex marks ventricular depolarisation, and the T wave marks ventricular repolarisation (recovery) before the next cycle begins.
Concept context
Blood, lymph, the heart, the cardiac cycle, blood pressure, and ECG. High NEET weightage.