Smooth muscle tissue, TEM
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Smooth muscle tissue, TEM
Smooth muscle tissue. Transmission electron micrograph (TEM) of a longitudinal section through smooth muscle cells. Smooth muscle cells are spindle-shaped and often closely packed together, particularly when forming a wall or sheets of muscle. They have a central nucleus (large ovals), and the cytoplasm is filled with myofilaments of the contractile proteins actin and myosin. These filaments are not arranged into orderly sarcomeres such as those found in cardiac and skeletal muscle cells. Magnification: x7, 500 when printed 10 centimetres tall
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9240763
© MICROSCAPE/SCIENCE PHOTO LIBRARY
Actin Black And White Cell Biology Contractile Cytological Cytology Fibres Filament Filaments Histological Histology Muscle Fibre Muscular Myofilament Myological Myology Myosin Nuclei Nucleus Organelle Organelles Smooth Muscle Tissue Transmission Electron Micrograph Transmission Electron Microscope Cells Section Sectioned
EDITORS COMMENTS
This print showcases the intricate beauty of smooth muscle tissue at a microscopic level. Taken using a transmission electron microscope (TEM), this image reveals a longitudinal section through smooth muscle cells, offering us a glimpse into their fascinating structure. The spindle-shaped smooth muscle cells are densely packed together, especially when forming muscular walls or sheets. Each cell possesses a prominent central nucleus, depicted as large ovals in the photograph. The cytoplasm of these cells is filled with myofilaments composed of actin and myosin proteins responsible for contraction. Unlike cardiac and skeletal muscles, which exhibit orderly sarcomeres, the filaments in smooth muscle cells lack such organization. Instead, they form an intricate network within the cytoplasm that enables these muscles to perform their unique functions. Printed at 10 centimeters tall with a magnification of x7,500, this image allows us to appreciate the complexity and elegance present within our own bodies. It serves as a reminder of the remarkable intricacies that exist on even the smallest scale in biology. This stunning photograph from Science Photo Library offers both scientists and enthusiasts alike an opportunity to explore the wonders of cellular biology while admiring its artistic appeal.
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