Trachea muscle, SEM C015 / 9935
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Trachea muscle, SEM C015 / 9935
Trachea muscle. Coloured scanning electron micrograph (SEM) of smooth muscle from the trachea. The trachea (wind pipe) runs from the larynx (voice box) to the lungs. The muscle fibres (upper frame) are surrounded by connective tissue (lower frame). Connective tissue supports other tissues and organs. The trachea is held open by incomplete rings of cartilage. Smooth muscle, known as the trachealis muscle, at the back of the trachea completes the rings. The trachealis muscle relaxes with inhalation and contracts with exhalation
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9238321
© SUSUMU NISHINAGA/SCIENCE PHOTO LIBRARY
Connective Tissue Fibre Fibres Muscular Scanning Microscopy Smooth Muscle Strand Strands Trachea Tracheal Wind Pipe
EDITORS COMMENTS
This print showcases the intricate beauty of the trachea muscle, captured through a colored scanning electron microscope (SEM). The trachea, also known as the windpipe, serves as a vital passageway connecting the larynx to the lungs. In this image, we witness smooth muscle fibers enveloped by connective tissue. Connective tissue plays a crucial role in supporting various organs and tissues within our body. It acts as a foundation for structural integrity and ensures proper functioning. As we observe this SEM image, we can appreciate how connective tissue surrounds and protects the delicate tracheal muscle fibers. To maintain its shape and functionality, incomplete rings of cartilage hold open the trachea. However, it is worth noting that these rings are not complete circles; instead, they form C-shaped structures. Completing these rings at the back of the trachea is smooth muscle called trachealis muscle. The remarkable feature of this smooth muscle is its ability to relax during inhalation and contract during exhalation – an essential mechanism for regulating airflow in our respiratory system. This dynamic function allows us to breathe effortlessly. Through SUSUMU NISHINAGA's lens and expertise in scanning microscopy, we gain insight into one of our body's intricate systems – highlighting both its aesthetic appeal and functional significance.
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