The anterior and posterior articular processes of the same side are connected by less prominent bony plate in chiru, whereas the bony plates were comparatively prominent in sheep. Infra spinous process (ISP) was more pronounced and longer than that of succeeding typical CV. Maximum antero-posterior lengths decreased at base of 3rd to 5th, maximum heights increased from 3rd to 4th again decreased at 5th CV in chiru and gradually increased from 3rd to 5th in sheep. The 3rd and 4th supra spinous processes (SSP) were directed upwards and slightly backward whereas, the 5th CV was directed vertically in chiru. The length of the bodies gradually decreases from 3rd to 5th CV both in chiru as well as in sheep. Bodies of the typical CV, except axis were relatively longer than other CV. ![]() 3rd, 4th and 5th cervical vertebrae (CV) of Chiru and sheep. In the present study the biometrical parameters revealed that the values were generally higher in chiru as compared to sheep.Ī comparative gross anatomical study was conducted on the typical cervical vertebrae i.e. Maximum dorso-ventral and transverse diameters at the anterior and posterior aspects of the right and left transverse opening in chiru and sheep from 3rd to 5th CV followed the increasing trend. The posterior division of transverse process of chiru was tuberous. Distance between the anterior and posterior articular processes showed increasing trend from 3rd to 5th CV in chiru.Transverse process of chiru was bifid having anterior and posterior divisions. Published by Elsevier Inc.A comparative gross anatomical study was conducted on the typical cervical vertebrae i.e. In clinical spinal manipulation practice, the anatomical characteristic of the axis should be taken into account during cervical static palpation, diagnostic imaging, and treatment.Ĭopyright © 2019. The anatomical structure of the spinous processes and the bifid spinous processes vary from one another, but they exhibit some regularity. 05), whereas in the left deviations of spinous process specimens (49 cases), the angular deflection of spinous processes were not equal in length, but bigger than the bifid spinous processes, which was statistically significant (t = -3.079, P =. When the correlation between angular deflection of spinous processes and bifid spinous processes was analyzed, the right deviations of spinous process specimens (29 cases) showed that angular deflections of spinous processes were equal to bifid spinous processes and there was no statistically significant difference seen between them (t = 0.286, P >. The direction of the spinous processes and bifid spinous processes were consistent because they depended on each other's direction of deviation. ![]() The bifid spinous process morphologies were classified into 4 types: inverted-V shape (n = 49), inverted-U shape (n = 50), M shape (n = 18), and nonbifid spinous processes (n = 4). The angular deflection of the spinous processes, the bifid spinous processes (the bifid portions of the spinous processes), and the length of the bifid spinous processes were observed and measured. ![]() Morphologies of the bifid spinous process in the intact dry axis of 121 Chinese adult were investigated and classified. The purpose of this study was to evaluate the osseous variation of the axis spinous process as it may relate to palpation by clinicians.
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