. The anatomical record. Anatomy; Anatomy. Fig. 3 Fragment of fiber from macerated cat's heart, drawn as if it were a transparent object. The nucleus is surrounded by granuhir sarcoplasm. The breaks follow tclophragmata, without any relation to hypothetical cell membranes. The manner of fracture strongly indicates that the central granular and more peripheral non-granular sarcoplasm are continuous, probably by reason of the meso- anrl tclophragmata. and that the former is not invested bj^ a cell membrane. X • Fig. 4 Naked nucleus from similar ])rci)arati()n. with adherent clumps of sarc
. The anatomical record. Anatomy; Anatomy. Fig. 3 Fragment of fiber from macerated cat's heart, drawn as if it were a transparent object. The nucleus is surrounded by granuhir sarcoplasm. The breaks follow tclophragmata, without any relation to hypothetical cell membranes. The manner of fracture strongly indicates that the central granular and more peripheral non-granular sarcoplasm are continuous, probably by reason of the meso- anrl tclophragmata. and that the former is not invested bj^ a cell membrane. X • Fig. 4 Naked nucleus from similar ])rci)arati()n. with adherent clumps of sarcoplasm. Fig. 0 Nucleus with an adherent mass of graiudar sarcoi)lasm from Ihc same preparation. The sarcoplasm is delimiteil at the right bj' a stout fibril which simulates a membrane, but a faint segmentation reveals its true myofibril nature. Fig. 6 fusiform connective tissue cell of the endomysium from the same preparation. Fig. 7 Isolatcfl large fusiform smooth muscle cell from cat's intestine. The nucleus is surrounded by coarsely granular sarcoplasm as in cardiac muscle, which is continuf)Us similarly with the more peripheral non-granular or finely granular sarcoi)lasm, though myofibrils may simulate, as in heart muscle, a cell membrane. X 1500; reduced one-half in reproduction. Fig. 8 Oblique transverse section of smooth muscle cell from nuiscularis mucosae of esophagus of cat. The perinuclear sarcoplasm has contracted away from the nucleus leaving a clear space, peripherally limited by a sharp line, a fixation artefact, simulating a cell membrane. The light-blue-staining sarco- plasm however is peripheral to this 'membrane' Zenker's fixation; hematoxylin- eosin stain. X 1500. 42S. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bardeen, Charles Russell, 1871-1935, ed; Boyden, Edward A. (E
Size: 850px × 2941px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1906
