Science Comparisons Arteries vs Veins vs Capillaries ICSE CBSE Nashik Bright Tutorials
Arteries vs Veins vs Capillaries: Differences with Diagram
T
Tushar Parik
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1 min read
Arteries vs Veins vs Capillaries: Differences with Diagram
This comprehensive guide from Bright Tutorials covers everything you need to know — with clear explanations, exam tips, and key points for board exam preparation.
In This Article
Arteries
- Carry oxygenated blood away from heart (exception: pulmonary artery)
- Thick, elastic, muscular walls to withstand high pressure
- No valves (except at base of aorta and pulmonary artery)
- Deep-seated, blood flows in spurts, narrow lumen
Veins
- Carry deoxygenated blood towards heart (exception: pulmonary vein)
- Thin walls, less muscular and elastic
- Have valves to prevent backflow of blood
- Superficial, blood flows smoothly, wide lumen
Capillaries
- Connect arteries to veins, form networks in tissues
- Thinnest blood vessels — wall is one cell thick
- Site of exchange: O₂, nutrients → tissues; CO₂, waste → blood
- Very narrow lumen, RBCs pass single file
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