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 |