Trachea lining, SEM C013 / 7119
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Trachea lining, SEM C013 / 7119
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 9198645
© 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 print showcases the intricate lining of a trachea, providing a glimpse into the remarkable protective mechanisms of our respiratory system. The image, captured using a scanning electron microscope (SEM), reveals the colorful world within this vital organ. The trachea, commonly known as the windpipe, acts as a crucial conduit between our larynx and lungs. Its epithelial lining is composed of specialized cells covered in hair-like structures called cilia. These ciliated epithelial cells play an essential role in maintaining respiratory health. As we inhale air laden with potential threats like dust particles or bacteria, mucus-secreting glands hidden beneath the surface produce sticky mucus that traps these harmful substances. Simultaneously, the beating motion of countless cilia propels this mucus upwards and outwards from our respiratory tract. By working harmoniously together, these microscopic defenders ensure that our lungs and airways remain clear and free from infection. This intricate defense mechanism serves as nature's ingenious way to protect us from harm. In this stunning SEM image printed at 10 centimeters wide with a magnification of x6000, Steve Gschmeissner skillfully captures both the beauty and complexity found within our bodies' biological systems. It reminds us of how intricately designed we are on even the smallest scale – truly awe-inspiring!
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