The Spinal cord ma tter Spinal cor Two enlargements matter Inner (1) Cervical enlargement:颈膨大 brou (2)Lum bosacral enlargement spina Middl 腰骶膨大: I nerves Tough, out Fissure and sulci: 灰质 Substantia grisea (1) Anterior median fissure前正中裂 白质 Substantia alba (2) Posterior median sulcus后正中沟 (3) Anterolateral sulcus前外侧沟: (4) Posterolateral sulcus后外侧沟 ntralis anterior Radix anterior 218.脊髓和脊神经根
◼ Two enlargements ⑴ Cervical enlargement:颈膨大： ⑵ Lumbosacral enlargement 腰骶膨大: The Spinal Cord ◼ Fissure and sulci: ⑴ Anterior median fissure 前正中裂 ⑵ Posterior median sulcus 后正中沟 ⑶ Anterolateral sulcus 前外侧沟: ⑷ Posterolateral sulcus 后外侧沟:
The spinal cord 3 segments of spinal cord脊髓节段 A portion of the spinal cord that give spinal n constitutes a segment 31 segments Cervical segment 8 e matter Thoracic segment 12 matter Lum bar egmont 5 core Sacral segment 5 spinal coccygeal segment 1 nerves sacr加 coccygeal net# showing spina hery
3. segments of spinal cord 脊髓节段 A portion of the spinal cord that gives attachment to a pair of spinal n. constitutes a segment. 31 segments : The spinal cord Cervical segment 8 Thoracic segment 12 Lumbar egment 5 Sacral segment 5 coccygeal segment 1
The spinal cord Table 1 Relationship of segments of spinal cord to vertebrae Spinal segments Vertebral levels c1~c4 Lie opposite the corresponding vertebrae c5~T4 1 lower in number than corresponding vertebrae 2 lower in number than T5~T8 corresponding vertebrae T9~T12 3 lower in number than corresponding vertebrae Lumber segments T10~T12 Sacral and coccygeal segments
The spinal cord Spinal segments Vertebral levels T10~T12 L1 3 lower in number than corresponding vertebrae 2 lower in number than corresponding vertebrae 1 lower in number than corresponding vertebrae Lie opposite the corresponding vertebrae Table 1 Relationship of segments of spinal cord to vertebrae C1 ~ C4 C5~T4 T5 ~ T8 T9 ~T12 Lumber segments Sacral and coccygeal segments
The spinal cord 4. nternal structures T10 (1) Central canal中央管 (2)Gray matter Actual Anterior horn( column)前角 Posterior horn( column)后角 ntermediate zone中间带 (3)White matter Anterior funiculus前索 Lateral funiculus外侧索 Posterion. Funiculus后索: Ant white commissure 白质前连合
4. Internal structures (1) Central canal 中央管 (2) Gray matter: The spinal cord Anterior horn (column) 前角 Posterior horn (column) 后角 Intermediate zone 中间带 (3) White matter Anterior funiculus 前索 Lateral funiculus 外侧索 Posterior. Funiculus 后索: Ant. white commissure 白质前连合
The spinal cord Gray matter P央管胸核 胶状质 Posterior horn(column) 后角边缘核 Posteromarginal nucleus 后角固有核 后角边缘核 Substantia gelatinosa胶状质 Nucleus proprius后角固有核 中间内侧核 Nucleus thoracicus(dorsalis)I 网状结 胸核(背核) in segments 中间外侧核 C8~L3
Gray matter 1) Posterior horn (column): The spinal cord Posteromarginal nucleus 后角边缘核 Substantia gelatinosa 胶状质 Nucleus proprius 后角固有核 Nucleus thoracicus (dorsalis) 胸核（背核）in segments C8~L3