Anatomical Location Of The Brodmann Areas, Inferior View

Description

Brodmann areas are localized across the inferior (basal) cerebral cortex, spanning the orbital surface of the frontal lobe and the ventral surface of the temporal lobe in a fixed inferior view. On the frontal lobe, the orbitofrontal gyri and gyrus rectus carry prefrontal fields commonly labeled BA 10, 11, 12, and 47, arranged anteriorly and medially around the olfactory sulcus. Posterior to the frontal pole, the inferior temporal gyrus, occipitotemporal (fusiform) gyrus, and parahippocampal gyrus are mapped with ventral temporal association cortices (often BA 20, 21, 37) and medial temporal cortices (BA 28, 34, 35, 36) clustered near the uncus and rhinal region. Major landmarks such as the longitudinal fissure (medial), lateral temporal margin (lateral), and the anterior temporal pole (anterior) help orient the numbered fields. Basal-surface Brodmann mapping matters when you need to translate gyral anatomy into functionally described cortex during lesion localization, neuropsychology correlation, or operative planning. Orbitofrontal involvement (BA 11/12/47) is a common substrate for disinhibition and impaired reward-based decision-making after traumatic brain injury or meningioma affecting the anterior cranial fossa, while medial temporal fields around the entorhinal and perirhinal cortices (BA 28/35/36) are early sites in Alzheimer disease and frequent targets in temporal lobe epilepsy workups. Spatial separation of ventral temporal areas along the fusiform and inferior temporal gyri helps clarify why resections or infarcts can selectively affect naming, object recognition, or face processing, rather than producing a generic memory complaint. Numbers anchor the discussion. Neuroanatomy and neuropsychology courses use an inferior Brodmann atlas to teach orbital and ventral temporal parcellation alongside olfactory and limbic landmarks. Neurology and neurosurgery publications also rely on this kind of illustration to annotate EEG electrode hypotheses, seizure onset zones, and resection margins in anterior temporal lobectomy and selective amygdalohippocampectomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.