Re: is there a specific artery supplying oxygen to the lungs???????????????

Good question.

The aorta as you know supplies oxygenated blood to the entire body. And 
that does include the lungs, too. Infact the Bronchial arteries which are 
branches of the other major arteries from the aorta (like the spinal 
branches and the others) indirectly supply oxygenated blood to the tissues 
of the lung.
The main arteries to the lung from the heart ( the pulmonary arteries )
carry the deoxygenated blood from the right side of the heart to the lungs 
to be oxygenated and cleared of carbon di oxide. this blood then comes 
back via  the pulmonary veins to the left side of the heart and gets 
pumped via the left ventricle  to the body via the aorta.
 
The names of the pulmonary arteries and veins are misleading in the sense 
that pulmonary arteries unlike other areteries do not carry oxygenated 
blood and the pulmonary veins unlike other veins do not carry deoxygenated 
blood.
May be I can attach a picture in the furture if you would like but I am 
sure you have access to anatomy books.
Thanks
I hope that helps