1. Convexity dura matter
The superior sagittal sinus with the associated Pacchionian granulations. The blood supply to the dura comes from branches of the middle meningeal artery.
Annotations Superior sagittal sinus, Falcine venous tributaries, Venous lacunae, Bridging vein opening, Arachnoid (pacchioni granulations), Middle meningeal artery
The superior sagittal sinus with the associated Pacchionian granulations. The blood supply to the dura comes from branches of the middle meningeal artery.
Annotations Superior sagittal sinus, Falcine venous tributaries, Venous lacunae, Bridging vein opening, Arachnoid (pacchioni granulations), Middle meningeal artery
2. Sagital sinus opened Convexity Dura
The outer layer of the superior sagittal sinus is opened and the inner sinus layer with the bridging veins is presented.
Annotations Convexity dura, Bridging vein opening, Arachnoid (pacchioni granulations), Falx cerebri, Superior frontal gyrus, Middle frontal gyrus, Precentral gyrus, Postcentral gyrus
The outer layer of the superior sagittal sinus is opened and the inner sinus layer with the bridging veins is presented.
Annotations Convexity dura, Bridging vein opening, Arachnoid (pacchioni granulations), Falx cerebri, Superior frontal gyrus, Middle frontal gyrus, Precentral gyrus, Postcentral gyrus
3. Convexity Dura unfolded
The convexity dura is reflected backwards revealing the brain. Note the bridging veins and the arachnoid granulations.
Annotations Convexity dura, Bridging vein opening, Arachnoid (pacchioni granulations), Falx cerebri, Superior frontal gyrus, Middle frontal gyrus, Precentral gyrus, Postcentral gyrus
The convexity dura is reflected backwards revealing the brain. Note the bridging veins and the arachnoid granulations.
Annotations Convexity dura, Bridging vein opening, Arachnoid (pacchioni granulations), Falx cerebri, Superior frontal gyrus, Middle frontal gyrus, Precentral gyrus, Postcentral gyrus
4. Falx cerebri
The brain is removed and the falx ceebri, tentorium as well as venous sinuses and cranial nerves are presented.
Annotations Tentorium, Falx cerebri, Occulomotor n., Optic n., Internal carotid artery, Tuberculum sellae, Planum sphenoidale, Cribriform plate, Crista galli, Pituitary stalk, Abducens nerve, Facial and vestibulocochlear nerve complex, Inferior sagittal sinus, Straight sinus, Confluens sinuum, Transverse sinus, Superior petrosal sinus, Superior sagittal sinus, Middle meningeal artery, Venous lacunae
The brain is removed and the falx ceebri, tentorium as well as venous sinuses and cranial nerves are presented.
Annotations Tentorium, Falx cerebri, Occulomotor n., Optic n., Internal carotid artery, Tuberculum sellae, Planum sphenoidale, Cribriform plate, Crista galli, Pituitary stalk, Abducens nerve, Facial and vestibulocochlear nerve complex, Inferior sagittal sinus, Straight sinus, Confluens sinuum, Transverse sinus, Superior petrosal sinus, Superior sagittal sinus, Middle meningeal artery, Venous lacunae
5. Tentorium
Tentorium cerebri ans skull base anatomy after falx and supratentorial dura are reflected.
Annotations Tentorium, Transverse sinus, Superior petrosal sinus, Occulomotor n., Optic n., Internal carotid artery, Tuberculum sellae, Planum sphenoidale, Cribriform plate, Crista galli, Pituitary stalk, Abducens nerve, Facial and vestibulocochlear nerve complex, Straight sinus, Confluens sinuum
Tentorium cerebri ans skull base anatomy after falx and supratentorial dura are reflected.
Annotations Tentorium, Transverse sinus, Superior petrosal sinus, Occulomotor n., Optic n., Internal carotid artery, Tuberculum sellae, Planum sphenoidale, Cribriform plate, Crista galli, Pituitary stalk, Abducens nerve, Facial and vestibulocochlear nerve complex, Straight sinus, Confluens sinuum
6. Skull base and cranial nerves
Anatomy of skull base and cranial nerves.
Annotations Trigeminal nerve, Transverse sinus, Superior petrosal sinus, Occulomotor n., Optic n., Internal carotid artery, Tuberculum sellae, Planum sphenoidale, Cribriform plate, Crista galli, Pituitary stalk, Abducens nerve, Facial and vestibulocochlear nerve complex, Internal acoustic canal, Jugular foramen, IX/X/XI nerve complex, Foramen magnum, Falx cerebri, Clivus
Anatomy of skull base and cranial nerves.
Annotations Trigeminal nerve, Transverse sinus, Superior petrosal sinus, Occulomotor n., Optic n., Internal carotid artery, Tuberculum sellae, Planum sphenoidale, Cribriform plate, Crista galli, Pituitary stalk, Abducens nerve, Facial and vestibulocochlear nerve complex, Internal acoustic canal, Jugular foramen, IX/X/XI nerve complex, Foramen magnum, Falx cerebri, Clivus
7. Skull base dura reflected
The middle fossa skull base dura is reflected and the cavernous sinus is exposed as well as the Meckel’s cave. Nerves within the cavernous sinus are visible. Middle meningeal artery and its dural course is visible.
Annotations Middle meningeal artery, Foramen spinosum, Middle fossa dura, Gasserian ganglion, V1, V2, V3, III n., IV n., Venous lacunae, Optic nerve, Internal carotid artery, Trigeminal nerve, Free edge of the tentorium, Sigmoid sinus, VII/VIII nerve complex, IX/X/XI nerve complex
The middle fossa skull base dura is reflected and the cavernous sinus is exposed as well as the Meckel’s cave. Nerves within the cavernous sinus are visible. Middle meningeal artery and its dural course is visible.
Annotations Middle meningeal artery, Foramen spinosum, Middle fossa dura, Gasserian ganglion, V1, V2, V3, III n., IV n., Venous lacunae, Optic nerve, Internal carotid artery, Trigeminal nerve, Free edge of the tentorium, Sigmoid sinus, VII/VIII nerve complex, IX/X/XI nerve complex