Hypoglossal canal

The hypoglossal canal is located between the occipital condyle and jugular tubercle and runs obliquely forwards (posteromedial to anterolateral) allowing the hypoglossal nerve (12th cranial nerve) to exit the posterior cranial fossa

Its proximal portion is often divided by a fibrous (sometimes ossified) septum, which separates the two roots of the hypoglossal nerve (these have formed by the convergence of numerous rootlets). These roots merge within the canal and a single nerve emerges.

Variant anatomy

Head and neck anatomy
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Article information

rID: 1481
System: Head & Neck
Section: Anatomy
Synonyms or Alternate Spellings:

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Cases and figures

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    Figure 1: MRI anatomy of the hypoglossal canal
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    Skull base inferi...
    Figure 2: inferior view
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    Skull base superi...
    Figure 3: inferior view
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