mid adult nurse examining senior woman's lungs using stethoscope in the bedroom in a nursing home - human lung 個照片及圖片檔
cropped shot of an unrecognisable doctor sitting with his patient and showing her x-rays on a digital tablet - human lung 個照片及圖片檔
normal human lung. alveoli, alveolar (air) sacs, 50x at 35mm. shows the thin alveolar walls (simple squamous epithelium) adapted for gas exchange. the red structures in the walls are red blood cells in the pulmonary capillaries. - human lung 個照片及圖片檔
modern 3d abstract background of human lung,three dimensional of human internal organ - human lung 個照片及圖片檔
