Pancreatic acinar cell
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Pancreatic acinar cell
Pancreatic acinar cell. Transmission electron micrograph (TEM) of a section through an enzyme-secreting acinar cell in the human pancreas, showing part of the nucleus (round, far left), rough endoplasmic reticulum (ER, dark lines), numerous Golgi complexes (stacks of ER), and many zymogen granules (circles), which contain the inactive forms of digestive enzymes. These enzymes are released from the cell by exocytosis. They pass into the pancreatic duct system and are delivered into the duodenum in the gut, where they are converted into their active state. Various locally acting hormones arising from the gut stimulate the production of this pancreatic enzyme-rich fluid. Magnification: x10, 000 when printed 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9242399
© MICROSCAPE/SCIENCE PHOTO LIBRARY
Acinar Cell Black And White Bowel Bowels Cell Biology Complex Complexes Cytological Cytology Digestive System Enzyme Enzymes Exocrine Gastrointestinal Tract Golgi Apparatus Histological Histology Inactive Intestinal Intestine Intestines Nucleus Organelle Organelles Pancreas Pancreatic Protein Synthesis Rough Endoplasmic Reticulum Synthesising Transmission Electron Micrograph Transmission Electron Microscope Cells Section Sectioned
EDITORS COMMENTS
This print showcases the intricate structure of a pancreatic acinar cell, captured through a transmission electron microscope. The image reveals the remarkable complexity within this enzyme-secreting cell found in the human pancreas. At first glance, one's attention is drawn to the round nucleus situated on the far left side of the photograph. Surrounding it are dark lines representing rough endoplasmic reticulum (ER), responsible for protein synthesis within the cell. Stacks of ER form numerous Golgi complexes, which play a crucial role in processing and packaging proteins. The most striking feature visible in this image is an array of zymogen granules scattered throughout the cytoplasm. These circular structures contain inactive forms of digestive enzymes that will later be released from the cell via exocytosis. Once released into the pancreatic duct system, these enzymes will eventually reach their destination -the duodenum- where they become activated to aid digestion. Interestingly, local hormones originating from the gut stimulate production of this enzyme-rich fluid by influencing these acinar cells. This highly specialized process ensures efficient digestion within our gastrointestinal tract. With its monochrome aesthetic and magnification level of x10,000 when printed at 10 centimeters wide, this print offers a glimpse into cellular biology at an incredibly detailed level. It serves as a testament to both scientific discovery and artistic beauty captured by Science Photo Library.
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