Image Based Question-65130

Contents of this stucture which is marked with blue in image are?

A. Glossopharyngeal nerve

B. vagus nerve

C. Accessory nerve

D. All the above

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Correct Answer » D Explanation

Ans;D. All the above

This structure is Jugular foramen

The glossopharyngeal nerve, the vagus nerve and the accessory nerve, so cranial nerves IX, X and XI pass through the jugular foramen. That’s four structures to remember.

Jugular Foramen:

1. Anterior part: Inferior Petrosal Sinus

2. Middle part:

• CN IX (Glossopharyngeal nerve)
• CN X (Vagus nerve)
• CN XI (Accesory nerve)
• Meningeal branch of Ascending Pharyngeal Artery

3. Posterior part:

• Internal Jugular vein (IJV) – Sigmoid sinus junction
• Emissary vein (Sigmoid sinus to occipital vein)
• Occipital artery