ReNEET 2026 · Biology · Q149Body Fluids and CirculationIn our bank: Exact match · 97%
The opening between the right atrium and the right ventricle is guarded by _________.
- A.bicuspid valve
- B.tricuspid valve✓
- C.semilunar valve
- D.sino-atrial node
Correct Answer
(B) tricuspid valve
Solution & Explanation
The right atrioventricular opening is guarded by a valve made of three cusps — the tricuspid valve. The left AV opening has the bicuspid (mitral) valve, and the bases of the pulmonary artery and aorta have semilunar valves.
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