Foramina of the Skull Anatomy

Question 1

What structures transmit via the Jugular Foramen?

Answer 1

• Anterior: inferior petrosal sinus
• Middle: Glossopharungeal (9), CN X, CN XI
  Posterior: Sigmoid sinus (becomes internal jugular vein) and some meningeal arteries

Question 2

Where is the Jugular Foramen located?

Answer 2

Temporal bone

Question 3

Where is Foramen Spinosum located and what 2 structures does it transmit?

Answer 3

Located in the Sphenoid bone

Transmits:
- Middle meningeal artery
- Meningeal branch of the mandibular nerve

Question 4

Other than the Foramen spinosum, what other Foramen lies in the sphenoid bone and what does it transmit?

Answer 4

Foramen Rotundum

Transmits Maxillary nerve (V2 of trigeminal nerve)

Question 5

Through which Foramen does the Facial nerve (CN VII) transmit?

Answer 5

Stylomastoid Foramen (found in the temporal bone)

Question 6

Through which foraminae does the ophthalmic branch (V1) exit the skull?

Answer 6

Superior orbital fissure

Question 7

What is transmitted through the Stylomastoid foramen and where in the skull is it found?

Answer 7

Temporal bone

Transmits:
- Stylomastoid artery
- Facial nerve

Question 8

What structures transmit through Foramen ovale?

OVALE

Answer 8

Otic ganglion
V3 (mandibular nerve: 3rd branch of trigeminal)
Accessory meningeal artery
Lesser petrosal nerve
Emissary veins