The angular gyrus is part of the inferior parietal lobule, arching over the upturned end of the superior temporal sulcus near the junction of the parietal, temporal and occipital lobes. It corresponds roughly to Brodmann area 39. It links visual, auditory and body information and is important for reading, writing and number skills.
| Location | Inferior parietal lobule, around the posterior end of the superior temporal sulcus |
|---|---|
| Parts |
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| Connections |
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| Blood Supply | Middle cerebral artery (angular artery) |
Integrates visual, auditory and spatial information, supporting reading, writing, calculation, word meaning and attention.
Dominant angular gyrus damage can cause alexia with agraphia (loss of reading and writing) and parts of Gerstmann syndrome. Stimulation here during surgery has produced out-of-body experiences. It is supplied by the angular branch of the middle cerebral artery and is vulnerable in watershed strokes.
Acquired loss of both reading and writing after dominant angular gyrus damage.
Finger agnosia, left-right confusion, agraphia and acalculia from dominant inferior parietal lesions.
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