Oesophagus wall, light micrograph

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Oesophagus wall, light micrograph

Oesophagus wall. Coloured light micrograph of a section through the human oesophagus, which passes food from the mouth to the stomach. The oesophagus lumen (white, top) is lined by a layer of stratified squamous epithelium (dark red). This protects underlying tissue and enables the passage of solid material by the lubricant action of its glandular secretion. Next is a supporting layer of connective tissue (orange), the lamina propria, which is rich in elastin fibres. A mucus duct (upper centre) can be seen running down these layers to join the submucosa, which contains mucous glands (pink) for lubricating the oesophagus as food passes through it. At bottom is a thick layer of circular and longitudinal muscles (red). Magnification: x80 when printed 10cm tall

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6449915

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Connective Tissue Cross Section Digestion Digestive System Duct Epithelium False Colour Gland Glands Histological Histology Lamina Propria Layers Longitudinal Lumen Muscles Oesophageal Oesophagus Orange Slice Squamous Epithelium Sub Mucosa Tissue Wall False Coloured Light Micrograph Light Microscope Section

EDITORS COMMENTS
This print showcases the intricate structure of the oesophagus wall, providing a fascinating glimpse into our digestive system. The image reveals a cross-section of the human oesophagus, which serves as a conduit for food from the mouth to the stomach. At first glance, we are drawn to the luminous white lumen at the top, lined with a layer of stratified squamous epithelium in dark red. This robust lining acts as a protective shield for underlying tissues while facilitating smooth passage of solid material through its glandular secretions. Beneath this resilient layer lies an orange-hued supporting connective tissue called lamina propria, rich in elastin fibers that provide flexibility and resilience. A mucus duct can be observed traversing these layers and joining with submucosa – housing pink mucous glands responsible for lubricating food's journey down the oesophagus. The bottommost section unveils thick layers of circular and longitudinal muscles in vibrant red hues. These muscular walls contract rhythmically during swallowing to propel food towards its destination. With a magnification factor of x80 when printed 10cm tall, this light micrograph captures every minute detail with precision. Its false-colored presentation adds an artistic touch while retaining scientific accuracy. This remarkable photograph not only highlights the complexity and beauty within our bodies but also serves as a valuable resource for researchers and enthusiasts delving into anatomy, histology, or biology studies.

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