BI-1140
Arteries, veins and capillaries
Biology · Secondary 3 · Medium · Arteries, veins and capillaries
A student compares the structure of an artery and a vein under the microscope. Which feature is correctly matched with its main function in an artery?
- Thin muscular wall – allows easy diffusion of oxygen.
- Presence of many valves – maintains high blood pressure.
- Wide lumen – allows blood to flow at very low pressure.
- Thick elastic wall – withstands and smooths out high blood pressure.
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