Fig. 4From: Ischemic survival and constitutively active autophagy in self-beating atypically-shaped cardiomyocytes (ACMs): characterization of a new subpopulation of heart cellsUltrastructures of cardiac ventricle and ACMs. TEM images of mouse cardiac ventricle (a, ×6,000; bar 1.7 µm) and various parts of ACM cultured for 5 days (b–d; ×25,000; bar 400 nm). b–d the enlargement of the small areas of corresponding squares on a line drawing of the cell (upper right). N nucleus, Mt mitochondria, Mf myofiber, rER rough endoplasmic reticulum, Pm plasma membrane. Arrowheads and arrows indicate autophagic bodies containing degraded multiple organelles and almost empty vacuoles, respectively. Dotted square (1–3) the plasma membrane rufflesBack to article page