The Skull, Foramina, Nerves and Vessels

Question 1

The Skull: Optic Canal

Answer 1

Bone = Sphenoid
Vessel = Ophthalmic artery
Nerve = Optic Nerve (CN II)

Question 2

The Skull: Superior Orbital Fissure

Answer 2

Bones = Sphenoid and Maxilla
Vessels = Superior and Inferior Ophthalmic veins
Nerves = Oculomotor (III), Trochlear (IV), Abducens (VI), Ophthalmic branch of Trigeminal (V1)

Question 3

The Skull: Inferior Orbital Fissure

Answer 3

Bones = Sphenoid and Maxilla
Vessels = Inferior ophthalmic veins, Infraorbital artery, Infraorbital vein
Nerves = Maxillary branch of Trigeminal (V2), Zygomatic (VII) and Orbital branches of Pterygopalatine ganglion

Question 4

The Skull: Foramen Rotundum

Answer 4

Bone = Sphenoid
Nerves = Maxillary Nerve (V2)

Question 5

The Skull: Foreman Ovale

Answer 5

Bone = Sphenoid
Vessel = Accessory meningeal artery
Nerve = Mandibular Nerve (V3)

Question 6

The Skull: Jugular Foramen

Answer 6

Bone = Occipital and Temporal
Vessels = Posterior meningeal artery, Ascending pharyngeal artery, Inferior petrosal sinus, Sigmoid sinus, Internal jugular vein
Nerves = Glossopharyngeal (IX), Vagus (X), Accessory (XI)