Interplay between sarcomeres connected in series in an LV myocyte of a mouse under deep anesthesia. (A) Graph showing CI for sarcomeres located at positions 1–5 in a mouse with ΔLVP 7.2 mm Hg. Data from M1 and M2 in Fig. S18 A were pooled. Horizontal bars, average; vertical bars, SD. **, P < 0.01; and ***, P < 0.001 compared with position 1. (B) Same as in A for sarcomeres located at positions 1–3 in a mouse with ΔLVP 4.7 mm Hg. Data from M1, M2, and M3 in Fig. S18 B are pooled. Horizontal bars, average; vertical bars, SD. ***, P < 0.001 compared with position 1. In A and B, sarcomeres at position 1 are adjacent to the ones at position 0. See Fig. 3 F for sarcomere geometry.