The Structure of Blood Vessels (OCR GCSE Physical Education): Flashcards
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15 cards from this deck
Artery wall structure
Artery wall structure
Thick muscular and elastic walls
Artery lumen size
Artery lumen size
Small
Blood pressure in arteries
Blood pressure in arteries
High pressure
Which direction do arteries carry blood?
Which direction do arteries carry blood?
Away from the heart
What type of blood do arteries carry?
What type of blood do arteries carry?
Oxygenated blood (usually)
Vein wall thickness
Vein wall thickness
Thin walls
Vein lumen size
Vein lumen size
Large lumen
Blood pressure in veins
Blood pressure in veins
Low pressure
What structure do veins contain?
What structure do veins contain?
Valves
What type of blood do veins carry?
What type of blood do veins carry?
Deoxygenated blood (mainly)
Capillary wall structure
Capillary wall structure
Very thin walls, one cell thick
Capillary lumen size
Capillary lumen size
Small lumen
What do capillaries link?
What do capillaries link?
Smaller arteries with small veins
What do capillaries allow?
What do capillaries allow?
Gaseous exchange
Blood pressure in capillaries
Blood pressure in capillaries
Low pressure