Keywords
alveoli, anatomy, artery, artwork, biology, black background, circulation, healthcare, human anatomy, human biology, human lung, illustration, lung, lung sac, medical illustration, medicine, pipe, respiratory system, sac, tissue, tube, vein, windpipe, stock illustration, royalty free illustrations, stock clip art icon, stock clipart icons, logo, line art, EPS picture, pictures, graphic, graphics, drawing, drawings, vector image, artwork, EPS vector arts, fine art prints, print, poster, posters, mural, wall murals, u24838032