Biology Circulation / Transport PMC 2020
PMDC Verified Question 40 of 54
Which of the following blood vessels have the highest pressure of blood?
A
Aorta
B
Pulmonary veins
C
Pulmonary arteries
D
Vena cava
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Aorta
Concept:

Blood pressure is directly proportional to the force of ventricular contraction and is highest closest to the pump.

Formula:

None

Solution:

  • The left ventricle is the most powerful chamber, generating immense force to push blood through the massive systemic circuit.


  • The aorta is the immediate vessel exiting the left ventricle.


  • Because it receives the full, undissipated force of left ventricular systole, the aorta experiences the highest blood pressure in the body (typically \(120\text{ mmHg}\)).


Why other options are incorrect:

  • Vena cava: Has the lowest pressure as blood returns to the right atrium.


  • Pulmonary arteries: Driven by the weaker right ventricle (usually around \(25\text{ mmHg}\)).

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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