推 stberry:2和3好像差在Rubrospinal暢通與否 決定上肢的flexion 05/12 00:10
※ 編輯: yutso 來自: 120.97.74.200 (05/12 00:12)
推 dewenhsu:red nucleus & rubrospinal tract 主要為 extension 05/12 00:15
→ dewenhsu:cortticospinal tract 主要為 flexion group m 05/12 00:16
→ dewenhsu:大腦皮質到 red nucleus 以上 lesion 05/12 00:16
→ dewenhsu:會使 corticospinal tr. 受損, rubrispinal tr.失去抑制 05/12 00:18
→ dewenhsu:結果就呈現 flexion 的姿勢 ( decorticate ) 05/12 00:18
→ dewenhsu:如果連 midbrain, red nucleus, rubrospinal tr. 都受損 05/12 00:19
→ dewenhsu:上面講錯... red nu. & rubrospinal 應該是管 flexion 05/12 00:21
→ dewenhsu:red nu. disinhibition -> rubrospinal tr facilitation 05/12 00:23
→ dewenhsu:呈現 flexion. 如果連 rubrispinal tr 都受損 05/12 00:25
→ dewenhsu:無法 flexion, 就變成 extension 05/12 00:25