Biology Circulation / Transport PMC 2020
PMDC Verified Question 39 of 54
The only vein in the human body carrying oxygenated blood is:
A
Femoral
B
Renal
C
Pulmonary
D
Iliac
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Pulmonary
Concept:

Anatomically, arteries carry blood away from the heart and veins carry blood toward the heart, regardless of oxygenation status.

Formula:

None

Solution:

  • In the systemic circuit, veins carry deoxygenated blood.


  • However, in the pulmonary circuit, the pulmonary vein returns blood from the lungs back to the left atrium of the heart.


  • Because this blood has just undergone gas exchange in the alveoli, it is highly oxygenated, making the pulmonary vein the major exception to the rule.


Why other options are incorrect:

  • Femoral, Renal, and Iliac veins all carry deoxygenated systemic blood back to the vena cava.

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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