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'''Dorsal neck''':
 
'''Dorsal neck''':
* Locate the spinous process of the axis, and cranially and laterally to this, the transverse processes of the atlas on each side.  Determine the extent of rotation in the altlantoaxial joint with reference to these landmarks.
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* Locate the spinous process of the axis, and cranially and laterally to this, the transverse processes of the atlas on each side.  Determine the extent of rotation in the atlantoaxial joint with reference to these landmarks.
 
* Locate the external occipital protuberance.  Determine the degree of flexion and extension possible in the occipitoatlantal joint with reference to this and the transverse processes of the atlas.  These three landmarks are used to determine the placing of a needle for cerebrospinal; fluid collection from the cerebellomedullary cistern.
 
* Locate the external occipital protuberance.  Determine the degree of flexion and extension possible in the occipitoatlantal joint with reference to this and the transverse processes of the atlas.  These three landmarks are used to determine the placing of a needle for cerebrospinal; fluid collection from the cerebellomedullary cistern.
  

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