L.P::pjI yT::llo accompany satadin: Anatomy & physiotosy, Fifth Edition LABORATORY 1O Axial Skeleton, Vertebrae, Ribs, Sternum, Hyoid 133 Anterior tubercle Anterior arch Superior articular facet Transverse loramen Posterior arch _ Posterior tubercle (a) Dens (odontoid process) Dens Transverse foramen Superior articular lacet '- "*' Transverse loramen ' Transverse process Bifid spinous process Superior articular lacet Transverse loramen Transverse loramen Vertebral foramen Spinous process icular ilar €6s lnlerior articular process -,"r,." tli ls Spinous process (b) 4 Axis of rotation Ie l -te le t r t t (c) of fusion are called transverse lines, and these may be seen on both the anterior and the posterior sides. The sacrum is shaped like a shallow, triangular bowl, If you place the sacrum in front of you as you would a ceieal bowl, the shallow depression is the anterior surface. The two rows of holes you see are the anterior sacral foramina. The holes on the back are known as the pos-
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Vertebra, Bones of the torso, Sacrum, posterior sacral foramina, Superior articular lacet