| A | B |
| Foramen rotundum | maxillary nerve (V2) of trigeminal nerve |
| maxillary nerve (V2) | distributes as zygomatic n., infraorbital n., greater and lesser palatine |
| Optic canal | optic n. (cr. n. II); ophthalmic a. of internal carotid a. |
| optic n. (cr. n. II); ophthalmic a. | retina; contents of orbit, including oculus, and skin of forehead |
| Superior orbital fissure | a) cr.n.VI (abducens n.); b) cr.n. IV (trochlear n.); ophthalmic nerve (V1); cr.n. III (oculomotor n.) |
| ophthalmic nerve (V1); | distributes, via 3 branches – lacrimal, frontal, and nasociliary |
| Foramen ovale | mandibular n. (V3); lesser petrosal n. |
| Anterior ethmoidal foramen | ophthalmic artery; anterior ethmoidal n.; nasociliary br. of V1 |
| anterior ethmoidal n.; nasociliary br. of V1 | ethmoidal air cells |
| Posterior ethmoidal foramen | posterior ethmoidal n.; posterior ethmoidal a. |
| Infraorbital foramen | infraorbital nerve maxillary n. (V2) |
| Inferior orbital | infraorbital n.; maxillary n. (V2) |
| foramen caecum | site of emissary vein in children = possible meningitis |
| supraorbital foramen ( notch) | supraorbital n.; frontal nerve (of V1) upper eyelid and forehead to vertex of scalp; supraorbital a. ophthalmic artery |
| foramen spinosum | middle meningeal a.; maxillary artery most of supratentorial dura mater |
| foramen lacerum | only structure which traverses foramen completely is the (small) meningeal branch of ascending pharyngeal a. |
| stylomastoid foramen | a) “muscular” part of facial nerve |
| incisive foramen | The communication between the nasopalatine and greater palatine branches of the maxillary nerve (V2) occurs here, as does the anastomosis between the sphenpalatine and greater palatine arteries. |
| greater palatine foramen | Greater palatine a) greater palatine n. and a.; maxillary nerve (V2) |
| lesser palatine foramen | lesser palatine n. and a.; maxillary n. (V2) palatine tonsil, soft palate |
| zygomaticofacial foramen | zygomaticofacial n. zygomatic br. of V2 skin over zygoma |
| mental foramen | a) mental nerve and artery inferior alveolar n. skin of chin and skin and mucous membrane of lower lip |
| mandibular foramen | inferior alveolar n.; mandibular n. (V3); mandubular a. |
| Pterygopalatine Fossa | maxillary n. (V2); pterygopalatine ganglion |
| stylomastoid foramen | muscles of facial expressions; posterior belly of digastric m. and stylohyoid muscle; stapedius muscle |
| stylomastoid foramen | stylohyoid branch of occipital artery tympanic cavity |
| Jugular foramen | a) internal jugular vein, formed by union of inferior petrosal and sigmoid (dural venous) sinuses |
| Jugular foramen | b) glossopharyngeal nerve (cr. n. IX) and sensory ganglia |
| Jugular foramen | c) vagus nerve (cr. n. X) and sensory ganglia |
| Jugular foramen | ) spinal accessory nerve (cr. n. XI) |
| Jugular foramen | e) meningeal branch of occipital artery |
| foramen magnum | a) anterior spinal a.; vertebral artery spinal cord, ventral portion |
| foramen magnum | vertebral artery (w/ subclavian artery brainstem, cerebellum, occipital lobe |
| foramen magnum | d) spinal portion of cr.n.XI; sternocleidomastoid and trapezius muscles |
| foramen magnum | neuraxis and meninges |
| foramen magnum | ligaments associated with craniovertebral joints |