Exploration of the meninges and brain in situ
Anterior and posterior cerebral arteries in relation to the falx cerebri
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Image #2-1
Exploration of the meninges and brain in situ
Anterior and posterior cerebral arteries in relation to the falx cerebri
The frontal, parietal and occipital lobes have been cut away from the left hemisphere and branches of the anterior, middle and posterior cerebral arteries have been left in situ. In the center of the hemisphere the white mass of the corona radiata (21) remains. No attempt was made here to dissect individual systems of fibers in this region inasmuch as these are demonstrated in dissections shown elsewhere. The contents of the lateral fissure have been disclosed by the resection of the frontal and parietal opercula. The upper half of the insula (11) is exposed and the circular sulcus can be seen around its periphery.
- Coronal suture
- Superior sagittal sinus (opened)
- Superior cerebral vein (which drains medial surface of left hemisphere)
- Falx cerebri and frontal bone
- Anterior medial frontal branch of left anterior cerebral artery
- Cingulate gyrus
- Callosomarginal branch of left anterior cerebral artery
- Frontopolar branch of left anterior cerebral artery
- Superior cerebral vein (which drains anterior medial aspect of frontal lobe into anterior end of superior sagittal sinus)
- Orbital branch of left anterior cerebral artery
- Insula
- Middle cerebral vein (at margin of lateral fissure)
- Superior temporal gyrus
- Temporalis muscle (cut across)
- Parietal bone
- Venous lacuna
- Superior cerebral vein (vein of central sulcus seen earlier)
- Intermediate medial frontal branch of left anterior cerebral artery
- Posterior medial frontal branch of left anterior cerebral artery supplying parietal lobe (this is a branch of the callosomarginal artery (7))
- Termination of left pericallosal artery
- Corona radiata (cut through)
- Parieto-occipital branch of left posterior cerebral artery
- Calcarine branch of left posterior cerebral artery
- Inferior cerebral vein (lateral occipital vein)
- Tentorium cerebelli and transverse sinus