ACB 8120 Lecture Notes - Lecture 72: Cortical Dysplasia, Ventral Anterior Nucleus, Central Sulcus
12 Apr 2020
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Document Summary
Gray matter = cell bodies nucleus, cortex. White matter = myelinated neuronal axons tracts. Cortex (of the brain) = covering bark . 6 layers that integrate sensory input and motor output. Small white matter = wasting away of white matter. Precentral - gyrus rostral to sulcus, primary motor cortex. Premotor cortex - association area rostral to precentral gyrus, organizes sequences of movements. Frontal eye fields - regulates eye movement (cn iii, iv, vi) and receives stimulus from frontal eye field. Broca"s area - coordination of motor aspects of speech (movement) Prefrontal cortex - largest cerebral association area located rostral to premotor cortex, adds higher abstract qualities to motor function (judgement, planning), executive function - orchestration of thoughts and actions in accordance with internal goals. Postcentral gyrus - caudal to central sulcus, primary sensory cortex (sensory homunculus hal) transforms sensory input into motor output (somatosensory) Paracentral lobule contains medial parts of precentral and postcentral gyri (lower limbs mapped here)
