1. Wall Thickness: Arteries have thicker, more muscular walls compared to veins. This is because arteries need to withstand the high pressure of blood pumped directly from the heart.

2. Presence of Valves: Veins have valves while arteries do not. The valves in veins prevent the backflow of blood, ensuring that blood flows in one direction towards the heart. Arteries do not need these valves because the blood is pumped at high pressure from the heart, which naturally prevents backflow.

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1. Wall Thickness: Arteries have thicker, more muscular walls compared to veins. This is because arteries need to withstand the high pressure of blood pumped directly from the heart.

2. Presence of Valves: Veins have valves while arteries do not. The valves in veins prevent the backflow of blood, ensuring that blood flows in one direction towards the heart. Arteries do not need these valves because the blood is pumped at high pressure from the heart, which naturally prevents backflow.

Knowee AI · Accepted Answer

1. Wall Thickness: Arteries have thicker, more muscular walls compared to veins. This is because arteries need to withstand the high pressure of blood pumped directly from the heart.

2. Presence of Valves: Veins have valves while arteries do not. The valves in veins prevent the backflow of blood, ensuring that blood flows in one direction towards the heart. Arteries do not need these valves because the blood is pumped at high pressure from the heart, which naturally prevents backflow.

State two structural differences between an artery and vein.

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