Skeletal Muscle #5
by Science Photo Library
Title
Skeletal Muscle #5
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
Light microscopy of skeletal muscle fibres seen in longitudinal section. The alternating banding pattern represents highly ordered assembly of contractile fibres called A bands (dark) and I bands (light). The interval between successive I bands is the smallest unit of muscle contraction and is called a sarcomere. Each skeletal muscle fibre consists of hundreds or thousands of individual cells that have fused together. Hence a fibre has multiple nuclei; these are positioned at the periphery of the cell. Magnification x550 when printed at 10 cm.
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July 27th, 2016
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