Biology Circulation / Transport SZABMU 2022
PMDC Verified Question 30 of 54
In human heart, the left atrium receives:
A
The superior vena cava
B
The inferior vena cava
C
The coronary sinus
D
The four pulmonary veins
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: The four pulmonary veins
Concept:

The left side of the heart is dedicated to systemic circulation and receives freshly oxygenated blood.

Formula:

None

Solution:

  • The left atrium acts as the receiving chamber for blood returning from the pulmonary circuit.


  • It receives this oxygenated blood through four distinct pulmonary veins.


Why other options are incorrect:

  • Vena Cavae and Coronary Sinus: All three of these vessels return deoxygenated blood exclusively to the right atrium.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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