精美解剖小腦ppt課件(已修改)
2025-01-17 16:04 本頁(yè)面
【正文】 1 小腦的表面解剖簡(jiǎn)介 5 一般將小腦分為蚓部與兩半球，前者在種屬發(fā)展史中屬較古老的部分，因名舊小腦 (paleocerebellum)，兩半球是較新的結(jié)構(gòu)又稱新小腦 (neocerebellum),舊小腦中絮結(jié)葉中更古老的部分因名原始小腦 (arechicerebellum)，原始小腦在高等動(dòng)物較小，而新小腦僅出現(xiàn)于哺乳動(dòng)物，它與大腦皮層的發(fā)育有相應(yīng)的關(guān)系 。 C. The Cerebellum (小腦 ) 1. Location: in the posterior cranial fossa. 2. Relationship: anteroinferior: attached to the brain stem by cerebellar peduncles (小腦腳 ) posterosuperior: tentorium cerebelli (小腦幕 ) 3. ? External feature lateral: left amp。 right cerebellar hemispheres (小腦半球 ) median: cerebellar vermis (小腦蚓 ) Subdivisions Anatomical (解剖 ) Functions (功能 ) Phylogeic (種系發(fā)生 ) Connection (聯(lián)系 ) Anterior lobe (前葉 ) Muscle tone amp。 synergy of muscle (肌張力 ,肌協(xié)調(diào) ) Motor execution (運(yùn)動(dòng)執(zhí)行 ) Paleocerebellum (舊小腦 ) Spino cerebellum (脊髓小腦 ) posterolateral fissure (前外側(cè)裂 ) Posterior lobe (后葉 ) Coordination of muscles Motor planning (協(xié)調(diào)運(yùn)動(dòng) )(運(yùn)動(dòng)計(jì)劃 ) Flocculo nodular lobe (絨球小結(jié)葉 ) Maintaining equilibrium coordinating eye movements (保持平衡 , 協(xié)調(diào)眼運(yùn)動(dòng) ) Archicerebellum (原小腦 ) Vestibul
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