NDA 2026
- Exam
- NDA
- Year
- 2026
- Subject
- General Ability
- Chapter
- General Science
NDA 2026 · General Ability · General Science
Which one of the following valves guards the opening between the...
Which one of the following valves guards the opening between the right ventricle and the pulmonary artery?
Options
- ABicuspid valve
- BSemilunar valve
- CMitral valve
- DTricuspid valve
Correct answer
B. Semilunar valve
Step-by-step solution
The opening between the right ventricle and the pulmonary artery is guarded by the pulmonary semilunar valve, which prevents the backflow of deoxygenated blood from the pulmonary artery into the right ventricle.
The bicuspid (or mitral) valve guards the opening between the left atrium and the left ventricle.
The tricuspid valve guards the opening between the right atrium and the right ventricle.
Answer: Semilunar valve
The bicuspid (or mitral) valve guards the opening between the left atrium and the left ventricle.
The tricuspid valve guards the opening between the right atrium and the right ventricle.
Answer: Semilunar valve