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Exploration of the brain from its lateral aspect

Relation of branches of middle cerebral artery to insula

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Image #13-3
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Legend Image
Exploration of the brain from its lateral aspect
Relation of branches of middle cerebral artery to insula
The branches of the middle cerebral artery have now been cut back to illustrate their relations to the gyri of the insula to which they supply numerous small twigs. The upper main branch divides into arteries which were seen in the previous view to supply the frontal lobe and anterior part of the parietal lobe. The middle trunk continues posteriorly in the lateral fissure to supply posterior parts of the parietal and temporal lobes and the lower main branch divides into arteries previously seen to supply the temporal lobe.
1 . Cortex of frontal lobe
2 . Short insular gyrus
3 . Cut surface of orbital gyri
4 . Middle cerebral artery (at point of entry into lateral fissure)
5 . Lateral fissure cerebri (Sylvian)
6 . Orbital gyri
7 . Central sulcus (of Rolando)
8 . Cut surface of parietal operculum
9 . Lateral fissure (Sylvian)
10 . Long insular gyrus
11 . Superior temporal gyrus (cut across)
12 . Medial temporal gyrus (cut across)