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Pancreas cell, TEM
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Pancreas cell, TEM
Pancreas cell. Coloured transmission electron micrograph (TEM) of an acinar (exocrine) pancreatic cell. Acinar cells secrete the inactive precursors (zymogens) of digestive enzymes to the small intestine, via the pancreatic ducts. The enzymes are secreted in vesicles known as zymogen granules (not seen) and are activated using proteolysis in the small intestine to aid the breakdown of carbohydrates, fats and proteins. The production and secretion of the zymogens are controlled by the cells endoplasmic reticulum and golgi apparatus (blue/red). The cells nucleus (purple, centre) and mitochondria (yellow) are visible
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6450923
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Acinar Cell Body Cytological Cytology Digestive Endoplasmic Reticulum Enzymatic Enzyme Enzymes Exocrine False Colour Golgi Apparatus Inactive Magnified Image Micrograph Microscopic Photos Nucleus Pancreas Pancreatic Precursor Secretory Storage Subjects Transmission Electron Microgra Transmission Electron Microscope Transport Zymogen False Coloured
EDITORS COMMENTS
This stunning coloured transmission electron micrograph (TEM) captures the intricate beauty of a pancreas cell. Specifically, it showcases an acinar pancreatic cell, which plays a crucial role in our digestive system. These cells secrete inactive precursors called zymogens that eventually transform into digestive enzymes and aid in breaking down carbohydrates, fats, and proteins. The image reveals the inner workings of the cell with remarkable detail. The zymogen granules responsible for enzyme secretion are not visible but are known to be present within these cells. The endoplasmic reticulum and golgi apparatus, depicted in blue and red respectively, control the production and release of these zymogens. In this magnified view, we can also observe the nucleus at the center of the cell represented in purple while mitochondria appear as yellow structures. This false-coloured representation allows us to appreciate both their distinct features and their vital roles within cellular function. Overall, this photograph provides a glimpse into the microscopic world of cytology by showcasing one component of our complex biological system – highlighting its normal anatomy and healthy state. It serves as a reminder of how intricately designed our bodies are on even the smallest scale.
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