. The anatomical record. Anatomy; Anatomy. 148 S. E. WHITNALL of similar origins examined the most marked differences of inser- tion were again in a higher position on the eyeball, though it should be added that, according to Howe, the ocular insertions of the inferior oblique are more variable than any of the other muscles. The length of the muscles was normal. As regards the possible effect of such a laterally displaced origin on the action of the muscle, it is first to be noted that, since. Fig. 2 Diagram to show normal position of origin of the inferior oblique muscle and its insertion ont
. The anatomical record. Anatomy; Anatomy. 148 S. E. WHITNALL of similar origins examined the most marked differences of inser- tion were again in a higher position on the eyeball, though it should be added that, according to Howe, the ocular insertions of the inferior oblique are more variable than any of the other muscles. The length of the muscles was normal. As regards the possible effect of such a laterally displaced origin on the action of the muscle, it is first to be noted that, since. Fig. 2 Diagram to show normal position of origin of the inferior oblique muscle and its insertion onto the eyeball. the attachment is behind the equator of the globe, contraction of the muscle will tend to draw the latter forward, and the more directly the origin is situated in front of the eyeball, at a greater advantage can the muscle so act. In the second place, the effect of the displacement is to bring the origin nearer the insertion, and so the length of the muscle would be decreased. Since the length of a muscle, in which the fibers are arranged parallel to the long axis, is one of the factors which determine the extent. 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. (Edward Allen), 1886-1976; Bremer, John Lewis, 1874- ed; Hardesty, Irving, b. 1866, ed; American Association of Anatomists; American Society of Zoologists; Wistar Institute of Anatomy and Biology. [New York, etc. ] A. R. Liss [etc. ]
Size: 1578px × 1583px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1906
