Anatomy and Cell Biology 3319 Lecture Notes - Lecture 2: Premotor Cortex, Parietal Lobe, Retina
13 Dec 2020
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Central sulcus: frontal and parietal separated parietal lobe: Primary motor cortex (neurons firing from here telling nerves to signal muscles to move) Responsible for coordinating and planning movements before they happen. Voluntary eye movements (just moving eyes, get impulses from here) Speech and language (left side of brain) It is near the lateral sulcus: broca"s speech. Longitudinal fissure down middle transverse cerebral fissure (where cerebellum meets temporal lobe) Broca: production of speech (broken wordmotor movements - frontal lobe) Damage to one of these areas around them (stroke): Making the word"s come out is wrong. Choppy words and can"t do words properly. Infart in the top middle region compared to more posterior. Think you are speaking in proper way, but it"s actually slurred. You speak fluidly (no problem in motor, You can move fingers all way but it"s off completely. Can"t actually pinch the fingers fully together. Certain tracts (association fibers within cortex) that communicate together.
