oesophageal inlet patch. endoscope view of the upper part of the oesophagus (gullet), showing abnormal cells. this patch is made up of heterotopic gastric mucosa cells, which are normally found lower down in the stomach.. - 動物食道 個影片檔及 b 捲影像00:33
microscopic view of paramecium (ciliate protozoan) moving in water containing bacteria or decaying organic matter - 動物食道 個影片檔及 b 捲影像00:16
microscopic view of paramecium (ciliate protozoan) moving in water containing bacteria or decaying organic matter - 動物食道 個影片檔及 b 捲影像00:16
microscopic view of paramecium (ciliate protozoan) moving in water containing bacteria or decaying organic matter - 動物食道 個影片檔及 b 捲影像00:16細菌
microscopic view of paramecium (ciliate protozoan) moving in water containing bacteria or decaying organic matter - 動物食道 個影片檔及 b 捲影像00:08
microscopic view of paramecium (ciliate protozoan) moving in water containing bacteria or decaying organic matter - 動物食道 個影片檔及 b 捲影像00:07
microscopic view of paramecium (ciliate protozoan) moving in water containing bacteria or decaying organic matter - 動物食道 個影片檔及 b 捲影像00:20
microscopic view of paramecium, a ciliate protozoan, moving in water containing bacteria or decaying organic matter - 動物食道 個影片檔及 b 捲影像00:07細菌
cu emperor penguin chick on feet calling for food and feeding from parents gullet, tilt up, antarctic - 動物食道 個影片檔及 b 捲影像00:35