Question

differentiate between superior vena cava and aortic arch​

Answer 1

The main difference between aorta and vena cava is that aorta carries oxygenated blood whereas vena cava carries deoxygenated blood. Aorta is the main artery that leaves the heart through the left ventricle. They are superior vena cava and inferior vena cava.

Answer 2

Answer:

The vena cava are two sets of veins: the superior vena cava, and the inferior vena cava. The inferior vena cava is the longest vein in the body. The superior vena cava mainly (by volume) brings deoxygenated blood from regions of the body above/at the level of the heart & the arms.

The vena cava has a thinner wall and a wider lumen than the aorta because of the lower blood pressures it has to deal with .

Arterial blood pressure will be higher than venous blood pressure. The force generated by the heart as it pushes blood out requires thick vessel wall so it does not rupture. The vena cava simply carries blood back to the heart, there is much less force/pressure in the vena cava

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