Transmission electron micrograph of section of cardiac muscle from guinea pig right atrium. A portion of nucleus is seen at upper right, with a centriole close to the nuclear envelope. Also seen in the cytoplasm is a portion of a mitochondrion at lower left several homogeneously atrial granules and numerous darkly staining glycogen granules. Image made available by James D. Jamieson and the Department of Cell Biology, Yale University School of Medicine.
Original 3.25 in. x 4 in. lantern slides were scanned at 600dpi. Original Magnification: x40,000.