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Nasal lining, SEM

Nasal lining, SEM


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Nasal lining, SEM

Nasal lining. Coloured scanning electron micrograph (SEM) of the olfactory epithelium that lines the nasal cavity, showing olfactory cells (red) surrounded by numerous cilia (hair-like projections, blue). The cilia are covered with a sticky mucus (not seen) that traps dust and other inhaled particles. Co-ordinated, wave-like beating of the cilia propels the mucus to the back of the nose (pharynx), where it is swallowed. The olfactory vesicles are bipolar neurons (nerve cells) that transmit smell information to the brain. Magnification: x300 when printed 10 centimetres wide

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

Media ID 9273221

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Bipolar Neuron Cilia Ciliated Cilium Colored Epithelial Epithelium Hair Hair Like Hairs Lining Membrane Mucosa Mucous Nasal Cavity Neurone Neurones Neurons Nose Olfaction Olfactory Respiratory Tract Secretory Sense Smell Tissue Vesicles Cells Neurological Neurology


EDITORS COMMENTS
This print showcases the intricate beauty of the nasal lining, as captured by a scanning electron microscope (SEM). The image reveals the olfactory epithelium that lines the nasal cavity, with its vibrant colors highlighting different components. The red dots represent olfactory cells, which play a crucial role in our sense of smell. Surrounding these cells are countless blue hair-like projections known as cilia. What makes this scene even more fascinating is the sticky mucus that covers these cilia, although not visible in the photograph. This mucus acts as a trap for dust particles and other substances we inhale. Through coordinated and wave-like movements, these cilia beat rhythmically to propel the trapped mucus towards the back of our nose or pharynx. From there, it is eventually swallowed. The olfactory vesicles depicted here are bipolar neurons responsible for transmitting smell information to our brain. These specialized nerve cells enable us to perceive various scents and odors in our environment. With a magnification level of x300 when printed at 10 centimeters wide, this SEM image offers an awe-inspiring glimpse into one of nature's remarkable biological systems. It serves as a reminder of how intricately designed and interconnected our bodies truly are – from microscopic structures like cilia to complex neural pathways that allow us to experience smells on a daily basis.

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