A system of human anatomy, general and special . is a rudimentaryspinous process; and upon its upper surface, near the articular pro-cesses, a shallow groovej at each side, which represents a superior * A central cervical vertebra, seen upon its upper surface. 1. The body, concave inthe middle, and rising on each side into a sharp ridge. 2. The lamina. 3. The pediclerendered concave by the superior intervertebral notch. 4. The bifid spinous The bifid transverse process. The figure is placed in the concavity between the ante-rior and posterior tubercles, between the two processes whi
A system of human anatomy, general and special . is a rudimentaryspinous process; and upon its upper surface, near the articular pro-cesses, a shallow groovej at each side, which represents a superior * A central cervical vertebra, seen upon its upper surface. 1. The body, concave inthe middle, and rising on each side into a sharp ridge. 2. The lamina. 3. The pediclerendered concave by the superior intervertebral notch. 4. The bifid spinous The bifid transverse process. The figure is placed in the concavity between the ante-rior and posterior tubercles, between the two processes which correspond with the rudi-mentary rib and the true transverse process. 6. The vertebral foramen. 7. The supe-rior articular process, looking backwards and upwards. 8. The inferior articularprocess. t Sometimes, as in a vertebra now before me, a small additional opening exists by theside of the vertebral foramen, in which case it is traversed by a 6econd vein. X This groove is sometimes converted into a foramen. 5* 54 ATLAS AND AXIS. Fig. 19.*. intervertebral notch, and supports the vertebral artery previously toits passage through the dura mater, and the first cervical intervertebral notches are peculiar from being situated behindthe articular processes instead of before them, as in the other verte-brae. The transverse processes areremarkably large and long, andpierced by the foramen for the ver-tebral artery. The articular pro-cesses are situated upon the mostbulky and strongest part of theatlas. The superior are oval andconcave, and look inwards, so as toform a kind of cup for the condylesof the occipital bone, and areadapted to the nodding movements of the head; the inferior are cir-cular, and nearly horizontal, to permit of the rotatory the inner face of the lateral mass which supports the articularprocesses, is a small tubercle at each side, to which the extremitiesof the transverse ligament are attached, a ligament which divides thering of the a
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectanatomy, bookyear1847
