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Subject :NCO    Class : Class 7
Why is pulmonary vein an exception?

Ans 1:

Class : Class 7
because it is an only vein carrying oxygenated blood

Ans 2:

Class : Class 7
In pulmonary vein, the vein carries oxygenated blood whereas all other veins carries deoxygenated blood. UNDERSTAND

Ans 3:

Class : Class 8
Pulmonary veins refers to The veins which carries oxygenated blood from lung to heart

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