NEETZoologyBody Fluids and Circulation
Match List-I with List-II. List-I List-II (A) Tricuspid valve (I) Lower left corner of right atrium (B) Bicuspid valve (II) Base of pulmonary artery and aorta (C) Semilunar valve (III) Opening between right atrium and right ventricle (D) AV node (IV) Opening between left atrium and left ventricle Choose the correct answer from the options given below:
Options
- A(A)-(IV), (B)-(III), (C)-(II), (D)-(I)
- B(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
- C(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
- D(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
Correct answer
C. (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
Step-by-step solution
The tricuspid valve guards the opening between the right atrium and the right ventricle (A-III). The bicuspid (or mitral) valve guards the opening between the left atrium and the left ventricle (B-IV). The semilunar valves are located at the openings of the right and left ventricles into the pulmonary artery and the aorta, respectively (C-II). The atrio-ventricular node (AVN) is a mass of specialized tissue seen in the lower left corner of the right atrium (D-I). Therefore, the correct matching is (A)-(III), (B)-(I