Trachea lining, TEM C014 / 1470
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Trachea lining, TEM C014 / 1470
Trachea lining. Transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs. The epithelial lining consists of cells that have hair-like cilia (long) on their surface and mucus-secreting glands. Mucus secreted by the glands 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, helping to keep the lungs and airways clear and prevent infection. Clear basal bodies and mitochondria (red) are visible in the cell bodies. Magnification: x7000 when printed 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9226417
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Bodies Cilia Cilium Cytological Cytology Gland Glands Histological Histology Lining Longitudinal Section Microvilli Microvillus Mitochondria Mitochondrion Mucous Cell Mucus Respiratory System Secretory Trachea Transmission Electron Micrograph Transmission Electron Microscope Windpipe Sectioned
EDITORS COMMENTS
This print showcases the intricate beauty of the trachea lining, as seen through a transmission electron microscope. The image reveals a longitudinal section of the windpipe's epithelial lining, which serves as a vital connection between the voicebox and lungs. The cells comprising this lining are adorned with hair-like cilia on their surface and mucus-secreting glands. These specialized features play crucial roles in maintaining respiratory health. As inhaled air passes through the trachea, mucus secreted by these glands acts as a trap for debris such as dust particles or bacteria present in the environment. Remarkably, it is the coordinated beating motion of these cilia that propels both mucus and trapped particles upwards and out of our respiratory tract. This mechanism aids in keeping our lungs and airways clear from potential infections. Upon closer examination, one can observe clear basal bodies and mitochondria within the cell bodies. Basal bodies serve as anchors for cilia while mitochondria provide energy to sustain cellular functions. With its magnification at x7000 when printed 10 centimeters wide, this photograph offers an awe-inspiring glimpse into our biological makeup. It highlights not only the complexity but also the remarkable efficiency of our body's defense mechanisms against harmful agents present in our everyday surroundings.
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