NDA 2025
- Exam
- NDA
- Year
- 2025
- Subject
- General Ability
- Chapter
- General Science
NDA 2025 · General Ability · General Science
Which one among the following statements about arteries and veins...
Which one among the following statements about arteries and veins in humans is NOT correct?
Options
- AArteries carry blood away from heart while veins bring blood towards the heart
- BPulmonary arteries always carry oxygenated blood while Pulmonary veins always carry deoxygenated blood
- CArteries have thicker and more elastic walls compared to veins in general
- DArteries do not have valves but veins do have valves
Correct answer
B. Pulmonary arteries always carry oxygenated blood while Pulmonary veins always carry deoxygenated blood
Step-by-step solution
Arteries generally carry oxygenated blood away from the heart, but the pulmonary artery is an exception as it carries deoxygenated blood from the right ventricle to the lungs.
Veins generally carry deoxygenated blood towards the heart, but the pulmonary vein is an exception as it carries oxygenated blood from the lungs to the left atrium.
Therefore, the statement that pulmonary arteries always carry oxygenated blood and pulmonary veins always carry deoxygenated blood is incorrect.
Answer: Pulmonary arteries always carry oxygenated blood while Pulmonary veins always carry deoxygenated blood
Veins generally carry deoxygenated blood towards the heart, but the pulmonary vein is an exception as it carries oxygenated blood from the lungs to the left atrium.
Therefore, the statement that pulmonary arteries always carry oxygenated blood and pulmonary veins always carry deoxygenated blood is incorrect.
Answer: Pulmonary arteries always carry oxygenated blood while Pulmonary veins always carry deoxygenated blood