Rabbit psoas skeletal muscle fibers were held at constant length and rigor induced by immersion in glycerol. The fibers were quick-frozen by contact with a liquid helium- cooled copper block in a Heu...

Figure 428 from Chapter 16 (Cytoplasmic matrix and cytoskeleton) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Papillary muscle of cat heart shows one sarcomere length of two adjacent myofibrils at h...

Transmission electron micrograph showing the nucleus of a mouse cardiac tissue with nucleolus. At the center of the image is a large structure called the nucleus which is a membrane-limited compartmen...

Transmission electron micrograph showing an over view of muscle tissue configuration from a mouse cardiac muscle ventricle. This image shows muscle to muscle connection and the abundance of mitochond...

Transmission electron micrograph of the periphery of an atria mouse cardiac muscle. This micrograph shows how rich cardiac tissue is with mitochondria reflecting its greater dependence on cellular re...

Adult Caenorhabditis elegans (C. elegans) nematode imaged by DIC (differential interference contrast) microscopy. The angle of light allows for the visualization of many of the tissues in this living ...

Figures 220 (upper) and 221 (lower) from Chapter 7 (Mitochondria) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Mitochondrial density, and the number of cristae per mitochondrion are related to energ...

Figure 191 from Chapter 5 (Endoplasmic Reticulum) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. A thin section through frog sartorius muscle shows the organization of the sarcoplasmic reticulum in am...

Rabbit psoas skeletal muscle fibers were held at constant length and rigor induced by immersion in glycerol. The fibers were quick-frozen by contact with a liquid helium- cooled copper block in a Heu...

Rabbit psoas skeletal muscle fibers were held at constant length and rigor induced by immersion in glycerol. The fibers were quick-frozen by contact with a liquid helium- cooled copper block in a Heu...