REA-Crossword Puzzle Clues. Search through millions of crossword puzzle answers to find crossword clues with the answer REA. Type the crossword puzzle answer, not the clue, below. Optionally, type any part of the clue in the Contains box.Click on clues to find other crossword answers with the same clue or find answers for the REA crossword clue.earch through millions of crossword puzzle answers to find crossword clues with the answer REA. Type the crossword puzzle answer, not the clue, below.
Eventually, the bronchi become known as bronchioles â the smallest air tubes in the lungs. This system of air tubes can be thought of as an upside down tree, with the trachea being the main trunk and the bronchi and bronchioles being the branches. The medical term for all the air tubes is 'the respiratory tract'.
The pulmonary artery conveys the venous blood to the lungs; it divides into branches which accompany the bronchial tubes and end in a dense capillary net-work in the walls of the alveoli. In the lung the branches of the pulmonary artery are usually above and in front of a bronchial tube, the vein below.