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Fig. 2 | Cell & Bioscience

Fig. 2

From: “Slow” skeletal muscles across vertebrate species

Fig. 2

a Slow fibers (a single fiber shown in blue) are found directly underneath the skin. Synapses (shown in red) are found at the chevron-shaped body segment boundaries. At the individual fiber level, these synapses are at the distal edges. AChR pentamers found in these synapses do not include the λ or ε subunit, and generate currents with slow decay kinetics. b Fast fibers (a single fiber shown in blue) are located in layers deeper than slow fibers. Synapses (red) can be observed as round spots in each fiber. AChRs contain λ or ε subunit (yellow) and generate fast synaptic current kinetics

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