The GATE Grind

GATE 2022 BM – Question 21

Mammalian Cell Biology, Human Anatomy and Physiology · Circulatory System · 1 mark · Multiple choice

Choose the correct direction of blood flow in a healthy person, starting and ending at the left ventricle. The options list major vessels and ventricles.

  1. LV → aorta → systemic arteries → systemic veins → vena cavae → pulmonary vein → pulmonary artery → RV → LV
  2. LV → aorta → systemic arteries → systemic veins → vena cavae → RV → pulmonary artery → pulmonary vein → LV
  3. LV → systemic arteries → aorta → systemic veins → RV → pulmonary artery → pulmonary vein → LV
  4. LV → aorta → systemic arteries → vena cavae → systemic veins → RV → pulmonary artery → pulmonary vein → LV

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Correct answer: (B) LV → aorta → systemic arteries → systemic veins → vena cavae → RV → pulmonary artery → pulmonary vein → LV

Explanation

The left ventricle ejects into the aorta and systemic arteries. Venous return passes through systemic veins and vena cavae to the right heart; the right ventricle sends blood through pulmonary arteries to lungs, returning through pulmonary veins to the left heart. B preserves this order. The atria and capillary beds are implicit in the source’s abbreviated chains.

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