Colonoscopy Bacteria, Sem
by Meckes/ottawa
Title
Colonoscopy Bacteria, Sem
Artist
Meckes/ottawa
Medium
Photograph - Photograph
Description
Color enhanced scanning electron microscope (SEM) image of different bacteria on an endoscope after a colonoscopy. The different bacteria have different colors for better distinction. The intestine of humans is colonized by bacteria and represents a complex and dynamic bacterial ecosystem that establishes itself within the first year of life. The population density of the gut is initially low and increases steadily with age. In naturally born children, colonization begins at birth. The first micro-organisms that can be detected include Escherichia coli, enteric bacteria (Enterobacteriaceae), and streptococci. In a healthy middle-aged adults this ecosystem consists of mainly anaerobic bacteria with a total of 10 - 100 trillion bacterial cells. The habitat of a human intestinal system typically contains at least 500 to 1,000 different species. Magnification 2,700x when printed at 10cm wide.
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May 19th, 2021
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