Vol. 9, Issue 1 (2020)

Author(s):
Rajalakshmi K, Sridevi P and Siva Kumar M

Abstract:
Thoracic vertebrae were nine in number showed they were freely movable, except that the last two showed fused with each other. There was a gradual increase in its length of the body from first to last after which the length reduced. The dorsal spinous process was plate like. The ventral spinous was well developed in the first two. The transverse process were broad plate like with their lateral borders beared the fovea costales transversalis which is articulated with tuberculum costae of its corresponding rib. The lumbosacral mass was formed by last two fused thoracic, six lumbar, tenth sacral and first coccygeal vertebrae. the dorsal and ventral scaral foramina were nine in number. The transverse process of the last two thoracic, lumbar and sacrum were fused with the medial surface of ilium coccygeal vertebrae were five in number of which the last three were fused and the last coccygeal vertebrae was boat shaped. The ribs were ten pairs. The first, second, third, ninth and tenth were floating ribs. The fourth, fifth, sixth and seventh and eighth were true ribs with a vertebral and a sternal.