Trachea lining, SEM C013 / 7120

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Trachea lining, SEM C013 / 7120

Trachea lining. Coloured scanning electron micrograph (SEM) of a section through the wall of a trachea (wind pipe), showing the ciliated epithelial cells. The trachea links the larynx to the lungs. The epithelial lining consists of mucus-secreting glands (not shown) and cells covered in cilia (hair-like). Mucus traps debris, such as dust particles or bacteria, in the inhaled air, while the beating of the cilia moves the mucus and particles upwards out of the respiratory tract. This helps to keep the lungs and airways clear and prevent infection. Magnification: x6000 when printed at 10 centimetres wide

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

Media ID 9198647

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Cilia Ciliated Cilium Colored Epithelial Epithelium Lining Mucosal Layer Protection Protective Respiratory Tract Secretion Subjects System Trachea Tract Wall Wind Pipe Cells Section Sectioned

EDITORS COMMENTS
This photo print, captured by Steve Gschmeissner from the Science Photo Library, showcases the intricate beauty of a trachea lining. Through a colored scanning electron microscope (SEM), we are able to witness the remarkable structure and function of this vital respiratory organ. The image reveals ciliated epithelial cells that form the inner wall of the trachea, also known as the windpipe. These specialized cells play a crucial role in protecting our lungs and airways from harmful particles or bacteria present in inhaled air. The tracheal lining consists not only of these hair-like structures called cilia but also mucus-secreting glands, which are not shown in this particular image. Together, they work harmoniously to maintain clear airways and prevent infections. As we breathe in, mucus traps debris such as dust particles or bacteria suspended in the air. Simultaneously, the rhythmic beating motion of cilia propels this mucus upwards towards our throat where it can be expelled through coughing or swallowing. This process helps keep our respiratory tract clean and free from potential harm. With a magnification level of x6000 when printed at 10 centimeters wide, this photograph offers us an up-close view into one aspect of our complex biological system. It serves as a reminder of how intricately designed our bodies are to protect us against external threats while ensuring optimal functioning within.

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