. Carnegie Institution of Washington publication. STUDIES ON THE LONGITUDINAL MUSCLE OF THE HUMAN COLON. 41 and thick, but are not effaced by subsequent growth in the general intestinal wall. They are actually permanent accumulations of muscle-fibers and not temporary migrations of fibers from the adjacent interspaces, since these spaces are entirely unaffected by them. This is somewhat at variance with Broman, who speaks of a splitting of the muscle by dilatation of the intestine which produces the three parallel bands. One may only conjecture what he considers produces the dilatation. That i
. Carnegie Institution of Washington publication. STUDIES ON THE LONGITUDINAL MUSCLE OF THE HUMAN COLON. 41 and thick, but are not effaced by subsequent growth in the general intestinal wall. They are actually permanent accumulations of muscle-fibers and not temporary migrations of fibers from the adjacent interspaces, since these spaces are entirely unaffected by them. This is somewhat at variance with Broman, who speaks of a splitting of the muscle by dilatation of the intestine which produces the three parallel bands. One may only conjecture what he considers produces the dilatation. That it is a filling of the intestine with meconium is a reasonable deduction, but the formation of the taeniae could hardly be explained on this basis. Meconium accumu- lates first in the rectum. In a 125-mm. fetus it fills the tube to distension only as far as the beginning of the sigmoid, but the taeniae are distinctly formed as early as \ w*X k\'!\. 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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