1) cervical segments (頸節): C 1 - 8
2) thoracic segments (胸節):T 1 - 12
3) lumbar segments (腰節): L 1 - 5
4) sacral segments (骶節): S 1 - 5
5) coccygeal segments (尾節): Co 1
資料來源:imaios
二、Enlargements (膨大):
1) cervical enlargement (頸膨大) (C5-T1) :upper limb
2) lumbosacral enlargement (腰骶膨大) (L2-S3) : lower limb
資料來源:medicinembbs
三、Gray matter (灰質)
1.posterior horn (column) (後角)
2.intermediate zone (中間帶) & lateral horn (側角) T1-L3
central gray substance (中央灰質):
anterior gray commissure
posterior gray commissure
3.anterior horn (前角)
四、Rexed laminae
1) posterior horn (column) (後角):
Rexed lamina I (Waldeyer): posteromarginal nucleus (後角邊緣核) -->pain & temperature
Rexed lamina II: substantia gelatinosa (Rolando) (膠狀質) --> pain & temperature
Rexed lamina III~IV:nucleus proprius (後角固有核) --> somatic senses (軀體感覺): pain, temperaure, touch and Pressure( spinothalamic tract (脊髓丘腦束))
Rexed lamina VI (locate in enlargements): deep sensory (深感覺)
Rexed lamina V:
a. lateral part (外側部): reticular formation(RF) (網狀結構)
b. medial part (內側部): 內臟感覺 --> spinothalamic tract (脊髓丘腦束)
laminae V + VI ← 後根+大腦運動區+大腦感覺區[調節運動]
2) intermediate zone (中間帶) & lateral horn (側角):
Rexed lamina VII
i. nucleus thoracicus (胸核) (dorsal nucleus, Clarke's column 背核, Clarke柱) (C8 – L3) → post. spinocerebellar tract (脊髓小腦後束) →cerebellum
ii. intermediomedial nucleus (中間內側核)-->visceral sensory
iii. intermediolateral nucleus (中間外側核) (T1-L2,3) -->sympathetic ganglion
iv. sacral parasympathetic nucleus (骶副交感核) (S2-4)-->pelvic splanchnic nn.(盆內臟神經)-->pelvic viscera (盆部內臟)
Rexed lamina X: central gray matter(中央灰質)
3) anterior horn (前角)
Rexed lamina VIII (intermedian neurons):網狀脊髓束, 前庭脊髓束, 內側縱束
Rexed lamina IX α- &γ- motor neurons
Rexed lamina IX: brain (腦)
anterior motor neurons (前角運動神經元):
- medial groups (內側群) → muscles of trunk
- lateral groups (外側群) → muscles of limb
α-motor neuron (α-運動神經元) → extrafusal (skeletal) fibers (梭外肌纖維)
voluntary movement (隨意運動)
γ-motor neuron (γ-運動神經元) → intrafusal fibers (梭內肌纖維). muscular tension (肌張力), coordination (肌協調)
資料來源:百度文庫
資料來源:virtualmedstudent
五、White matter (白質)
1) divisions (分區):
i. anterior funiculus (前索)
ii. lateral funiculus (外側索)
iii. posterior funiculus (后索)
參見:脊髓(Spinal cord)
五、White matter (白質)
1) divisions (分區):
i. anterior funiculus (前索)
ii. lateral funiculus (外側索)
iii. posterior funiculus (后索)
參見:脊髓(Spinal cord)
▼脊髓(spinal cord)
顯示/隱藏(show/hide)
標籤:
神經(nerve),
脊髓(spinal cord)
2) lumbosacral enlargement (腰骶膨大) 是T11-L2吧?
回覆刪除回樓上 您說的應該是TV11-LV2 那是脊椎骨的高度沒錯
刪除但我想內文指的是脊神經的L2-S3分支
兩者的高度是相同的喔
btw春假還要讀神解辛苦惹 我也正在QQ
我的母親發生車禍在第三腰椎、第四腰椎、第五腰椎及第一薦椎滑脫併有脊髓壓迫,請問這是中樞神經的傷害嗎?
回覆刪除