20.0 MB (2.2 MB compressed)
2980 x 2346 pixels
25.1 x 19.8 cm ⏐ 9.9 x 7.8 in (300dpi)
FRANCOIS L'HOPITAL / ISM / SCIENCE PHOTO LIBRARY FRANCOIS L'HOPITAL / ISM / SCIENCE PHOTO LIBRARY
Stomach antireflux valve. Endoscope view of the stomach, looking backwards and showing the antireflux valve that prevents stomach acid entering the oesophagus. Part of the endoscope is visible in this rear view.
Model release not required. Property release not required.