BI-1111
Arteries, veins and capillaries
Biology · Secondary 3 · Medium · Arteries, veins and capillaries
In a healthy leg vein, which structure prevents the backflow and accumulation of blood, reducing the chance of varicose veins?
A) Thick muscular walls
B) Elastic tissue in the wall
C) Semilunar valves inside the vein
D) High blood pressure from the heart
A) Thick muscular walls
B) Elastic tissue in the wall
C) Semilunar valves inside the vein
D) High blood pressure from the heart
- Thick muscular walls
- Elastic tissue in the wall
- Semilunar valves inside the vein
- High blood pressure from the heart
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