Extended Data Figure 6: Sarcolemmal capillary grooves remain even after removal of capillaries.
From: Mitochondrial reticulum for cellular energy distribution in muscle
a, Longitudinal view of a 3D rendering of the outer 10 µm of an enzymatically isolated muscle fibre imaged as the mitochondrial TMRM signal by confocal microscopy. Blood vessels (V) and nuclei (N) are apparent as negative signals. b, c, Rotation of the volume in a around the longitudinal (b) and cross-sectional (c) axes reveals the grooves in the sarcolemma where capillaries were once present. Scale bars, 10 μm. Images representative of 11 fibres from 4 mice.
