Dissection of anterior aspect of vertebral column

Cervical region.

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Image #220-3

Dissection of anterior aspect of vertebral column Cervical region. The longus coli, rectus capitis anterior, rectus capitis lateralis, and some of the cervical intertransverse muscles have been cut away. In addition, the transverse processes of the atlas, the axis, and the fifth cervical vertebra have been cut so that the course of the vertebral artery (17) is visible. The artery did not pass through the transverse process of the sixth cervical vertebra in this specimen. 1 . Nasal cavity 2 . Area of insertion of longus capitis muscle 3 . Nasopharynx 4 . Longus colli muscle (transected close to insertion on anterior tubercle of atlas) 5 . Superior cervical ganglion 6 . Lingual nerve 7 . Areas of insertion of longus colli muscle on bodies of vertebra C. III - V 8 . Upper pointer: Position of intervertebral disc uniting vertebra C. IV - V Lower pointer: Body of vertebra C. V 9 . Internal carotid artery 10 . Hypoglossal nerve (XII) (emerging from hypoglossal canal) 11 . Atlanto-occipital joint 12 . Ventral branch cervical nerve I (branch communicating with hypoglossal nerve cut away) 13 . Posterior arch of atlas 14 . Lateral atlantoaxial joint 15 . Ventral branch cervical nerve II 16 . Rami communicantes (gray) 17 . Vertebral artery 18 . Cervical nerve III 19 . Anterior intertransverse muscle 20 . Dorsal branch cervical nerve IV 21 . Posterior intertransverse muscle 22 . Ventral branch cervical nerve IV 23 . Ramus communicans (gray) 24 . Sympathetic trunk 25 . Anterior tubercle vertebra C. V 26 . Cervical nerve VI