Smell receptor, TEM
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Smell receptor, TEM
Smell receptor. Transmission electron micrograph (TEM) of a section through the olfactory epithelium that lines the nasal cavity, showing an olfactory cell (smell receptor, red) and its cilia (hair-like projections). Olfactory receptors are bipolar neurons (nerve cells) that transmit smell information to the brain. 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. Magnification: x5000 when printed 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9242349
© 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 Transmission Electron Micrograph Transmission Electron Microscope Vesicles Cells Neurological Neurology Section Sectioned
EDITORS COMMENTS
This print showcases the intricate structure of a smell receptor, as captured by a transmission electron microscope (TEM). The image reveals a section through the olfactory epithelium that lines the nasal cavity, providing us with an up-close view of an olfactory cell or smell receptor. Colored in vibrant red, this specialized neuron plays a crucial role in transmitting smell information to our brain. The photograph also highlights the cilia, which are hair-like projections extending from the olfactory cell. These cilia are covered with a sticky mucus that acts as a trap for dust and other particles present inhaled air. Through coordinated wave-like beating movements, these cilia propel the mucus towards the back of our nose (pharynx), where it is eventually swallowed. With its magnification at x5000 when printed 10 centimeters wide, this image offers an extraordinary level of detail and insight into our sense of smell. It provides us with a glimpse into the complex biology and anatomy behind our ability to perceive different scents. Photographer Steve Gschmeissner has skillfully captured this microscopic world within our nasal cavity, revealing both beauty and functionality in one striking composition.
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