Where is foramen lacerum? What goes through it?

Where is foramen lacerum? What goes through it?

Answer:

Petrous temporal bone.
Upper end transmits ICA with sympathetic nerves.
Lower end is covered with connective tissue.

What is the position of the superior orbital fissure?

What is the position of the superior orbital fissure?

Answer: Between the greater and lesser wings of sphenoid.

What goes through foramen ovale?

What goes through foramen ovale?

Answer:

CN V3 (mandibular nerve)
Accessory meningeal artery

What goes through foramen rotundum?

What goes through foramen rotundum?

Answer:

CN V2 (maxillary nerve).
Small veins from cavernous sinus.

Where does each maxillary sinus drain?

Where does each maxillary sinus drain?

Answer: Into the middle meatus

Where does the sphenoid sinus drain?

Where does the sphenoid sinus drain?

Answer: Into the superior meatus