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Maintain Specialised Structure Arteries  Narrow Lumen High Pressure

Arteries have a narrow lumen for high pressure, thick collagen walls for strength, and inner muscle/elastic fibers to handle pulse flow.

Arteries have a narrow lumen to maintain high pressure, thick walls with outer collagen for strength, and inner muscle and elastic fibers to manage pulse flow.

Front specialised structure of arteries 
Back narrow lumen to maintain high pressure, thick wall (outer collagen) to prevent rupture, innner muscle and elatic fibres to maintain pulse flow 

Tags: 6_2_blood_system

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