Islet of Langerhans, TEM C015 / 6418
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Islet of Langerhans, TEM C015 / 6418
Islet of Langerhans. Transmission electron micrograph (TEM) of a section through cells clustered in an islet of Langerhans in the pancreas. A variety of endocrine cell types are seen, including beta cells, which secrete insulin, alpha cells, which secrete glucagon and delta cells that secrete somatostain. These hormones are stored in the many cytoplasmic granules (black spots) and released into blood vessels to regulate the supply of glucose throughout the body
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9208499
© CNRI/SCIENCE PHOTO LIBRARY
Alpha Cell Beta Cell Black And White Cell Biology Cytological Cytology Digestive System Endocrine System Glucagon Granule Granules Histological Histology Hormonal Hormone Insulin Islet Of Langerhans Microscope Organelle Organelles Pancreas Pancreatic Secretion Secretory Transmission Electron Transmission Electron Micrograph Transmission Electron Microscope Cells Section Sectioned
EDITORS COMMENTS
This print showcases the intricate structure of the Islet of Langerhans, a cluster of cells found in the pancreas. Taken using a transmission electron microscope (TEM), this high-resolution image reveals various endocrine cell types within the islet. The islet houses different types of cells responsible for producing vital hormones that regulate glucose levels in our body. Among them are beta cells, which secrete insulin to lower blood sugar levels; alpha cells, which release glucagon to raise blood sugar levels; and delta cells that produce somatostatin. In this stunning micrograph, we can observe numerous cytoplasmic granules scattered throughout these specialized cells. These granules act as storage units for the hormones produced by each cell type. When needed, these hormones are released into nearby blood vessels to maintain glucose homeostasis throughout our body. By capturing this microscopic view with exceptional detail and contrast, it highlights not only the complexity but also the beauty present within our biological systems. This image serves as a testament to how advancements in technology allow us to explore and appreciate the intricacies of life at a cellular level.
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