. Elementary anatomy and physiology : for colleges, academies, and other schools. Anatomy; Physiology. 108 HITCHCOCK'S ANATOMY. A View of the Fragments of Striped elementary Fibers, showing a cleavage in opposite directions—magnified 300 Diameters. 1, The Longitudinal Cleavage. 2, The Transverse Cleavage, the Longitudinal Lines being scarcely visible. 3, Incomplete Fracture, follow- ing the opposite surfaces of a Disc which stretches across the Interval and retains the two Fragments in connexion. The Edge and Surface of this Disc are seen to be minutely granular, the Granules corresponding in
. Elementary anatomy and physiology : for colleges, academies, and other schools. Anatomy; Physiology. 108 HITCHCOCK'S ANATOMY. A View of the Fragments of Striped elementary Fibers, showing a cleavage in opposite directions—magnified 300 Diameters. 1, The Longitudinal Cleavage. 2, The Transverse Cleavage, the Longitudinal Lines being scarcely visible. 3, Incomplete Fracture, follow- ing the opposite surfaces of a Disc which stretches across the Interval and retains the two Fragments in connexion. The Edge and Surface of this Disc are seen to be minutely granular, the Granules corresponding in size to the thickness of the Disc and to the dis- tance between the faint Longitudinal Lines. 4, Another Disc nearly detached. 5, A de- tached Disc more highly magnified, showing the Sarcous Elements. 6, Fibrillar separated by violence from each other at the broken end of the Fiber. 7, 8, The two appearances commonly presented by the separated single Fibrillae; more highly magnified, at 7 the spaces are rectangular, at 8 the borders are scalloped and the spaces bead-like. of an inch, and number about 650 in each ultimate fiber. They are unprotected by any covering, while both the fasicu- Fm. 122. lus and ultimate fiber are everywhere pro- tected by a delicate sheath called the Sarcolemma. 230. Organic, or Unslriped, and Ani- mal, or Striped Fi- bers.—All the mus- cles of the body are divided into two classes, according to their function. Those necessary for carrying on the vital functions, such as breathing and digestion, are called Or- ganic, and those under the control of the will Animal Fi- bers. In addition to their use as a means of distinction, they may be known by their appearance under the micro-. 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 Hitchcock, Edward, 1793-1864; Hitchcock, Edward, 182
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