BIO 11 Lecture Notes - Lecture 26: Striatum, Substantia Nigra, Axon
3 Sep 2020
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Coordination learned motor patters, posture, walking, repetitive actions. Relay cortex to thalamus (usually not an initiator) Caudate nucleus large head and a slender curving ail that follows the curve of the lateral ventricle. Head of the causate nucleus lies anterior to the lentiform nucleus. Adjusts muscle tone in preparation for motion. Controls and adjust muscle tone, in appendicular muscles to set body position in preparation for a voluntary movement. Control the cycles of arm and leg movements that occur between time you decide to start walking and the time you decide to stop. Claustrum thin layer of gray matter lying close to the putamen. Subconscious visual information processing, focus attention on patterns. Putamen + globus pallidus lentiform nucleus (modify voluntary movement) Caudate + putamen corpus striatum (control the cycles of walking not the decision) Limbic system emotional states link intellect to unconscious. Atrophy of certain forebrain structures including the entire cerebral cortex. Caudate nucleus and putamen cannot control cycles.
