
the swift, the anterior process for the attachment of the anterior muscle of the neck, is continued across the lum- bar articulations to the upper part of the pelvis. In the lateral motion of the dorsal and lumbar portions of the spine of birds, some provision became necessary to protect that portion of the spinal marrow from injurious pressure, and we find that is accomplished by a contrivance as simple and as effectual, and in some instances similar, as that for the same purpose in the neck; for this object is not always effected by the same means as in the cervi- cal vertebrae of birds, as described by the late Mr Earle Here also, in one case, pressure is prevented in ben- ding the vertebral column laterally, by enlarging the lateral diameter of the canal, at the upper and lower part of each vertebrae, while at the middle it remains of the usual size, so that the shape of the cavity re- sembles that of an hour-glass. - In others, there is a large lateral notch in the sides as in Plate 2, letters b and at the top and bottom of each vertebra forming an opening by the union, and thus affording space for the same purpose. And again, it may be observed, that a vertebral canal, at the top and bottom of each moveable vertebra, is of an
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Manuscript details
- Author
- George Oakley Fleming
- Reference
- AP/28/6
- Series
- AP
- Date
- 1846
- IIIF
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Cite as
On Motion in the lumbar division of the spine of birds, by George Oakley Fleming , 1846. From The Royal Society, AP/28/6
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