17 Eylül 2012 Pazartesi

Cervical Vertebral Levels


Learn important landmarks and structures found at various cervical vertebral levels. 











Pharynx





Soft Palate


C1







Superior cervical ganglion
C2

Hyoid Bone





Bifurcation of CCA


C3



Thyroid cartilage





Larynx




C4





Thyroid gland





C5
EJV crosses SCM

Cricoid cartilage
Inferior laryngeal nerve enters the larynx
Middle cervical ganglion behind inferior thyroid artery
Vertebral artery enters transverse foramen of C6
C6

Isthmus of thyroid gland
Trachea


Esophagus



Inferior cervical ganglion

C7

Sterno-clavicular
joint






T1

Jugular notch








T2
CCA – common carotid artery;         EJV – external jugular vein;   SCM – sternocleidomastoid


Hyoid bone     C3
Thyroid cartilage        C4-C5
Cricoid cartilage         C6 (lower border of C6, sometimes C6-C7)


Bifurcation of Common Carotid       C3-C4
Pharynx          C1-C6
Larynx (in adults)       C4-C6
Point at which the EJV crosses the posterior border of the SCM muscle    C6

Pharynx becomes Esophagus     C6 (lower border of C6)
Larynx becomes Trachea          C6 (lower border of C6)

Thyroid gland             C5-T1
Isthmus of Thyroid gland      C7

Superior cervical ganglion (largest)   C2-C3
Middle cervical ganglion behind (smallest, sometimes absent)        C6
Inferior cervical ganglion       C7 (lower border of C7)


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