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The diagram shows a vertical section through the heart.

What are the functions of the numbered blood vessels?

Carries blood
to body
Carries blood
to lungs
Carries blood
from lungs
Carries blood
from body
(a) 1 2 3 4
(b) 1 3 4 2
(c) 2 4 3 1
(d) 3 1 4 2

A. (a) B. (b) C. (c) D. (d)

1 Answer

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Best answer

1- pulmonary artery 

2- vena cava 

3- aorta 

4- pulmonary vein

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