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. Author manuscript; available in PMC: 2015 Jan 28.
Published in final edited form as: J Comp Neurol. 2013 Oct 1;521(14):3260–3271. doi: 10.1002/cne.23345

Figure 4.

Figure 4

Distribution of cisterns and vesicles as a function of distance from the ribbon surface. A: Mean vesicle density (± SE) for six high-SR and six low-SR synapses. To calculate density (/μm3), the area of each concentric ring around the ribbon (incremented in 44-μm steps) was multiplied by the section thickness (70 nm). For both panels, only sections including a portion of the ribbon were included. Rectangle indicates the area of significant differences between low- and high-SR synapses. B: Mean cisternal counts (± SE) for all synapses are shown. In addition, counts for low- and high-SR synapses are plotted separately. SE, standard error; SR, spontaneous rate.