Question

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Question-what is difference between veins and arteries.

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Answer 1

Answer:

Arteries carry blood away from the heart to various parts of the body. Veins carry blood from the various parts of the body towards the heart. The pressure is high as the blood flows by the pumping pressure of the heart. The pressure is low as the blood flows by the capillary action of the veins.

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Answer 2

*Diagram in the attachment.

Arteries:

  Structural Differences:

1. Tunica Media are thicker.
2. Lumen is narrow.
3. They are elastic.
4. No valves are present.

  Functional Differences:

1. Carry oxygenated blood except pulmonary artery, which carries deoxygenated blood.
2. They carry blood from heart to entire body except pulmonary artery, which carries blood from heart to lungs.

  Other Differences:

1. Blood is bright red.
2. Blood flows with a jr due to the systolic pressure.
3. They are deep seated.
4. Pulse is felt.

Veins:

  Structural Differences:

1. Tunica Media are thinner.
2. Lumen is broader.
3. They are not elastic.
4. Valves are present.

  Functional Differences:

1. Carry deoxygenated blood except pulmonary vein, which carries oxygenated blood.
2. They carry blood from the entire body back to the heart except pulmonary vein, which carries blood from lungs to heart.

  Other Differences:

1. Blood is dark red.
2. Blood flows passively.
3. They are superficial.
4. No pulse is felt.