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脊柱动脉
学习目标
完成本单元的学习以后，你将可以：
- 掌握脊柱主要动脉及其走行。
- 掌握各动脉分支的位置及滋养区域。
浏览图谱
虽然脊柱从颅底一直延伸到骨盆，但每节椎骨的血供在整个行程中基本相同。相似的复杂动脉网络供应着每一节椎骨，其区别主要在于来源动脉，它们随脊柱区域的不同而变化。
每节椎骨都由多条血管供应，包括起自较大主干动脉的脊髓支、骨膜支、椎体前/后支以及椎板前/后支。颈段椎骨的动脉血供主要来自椎动脉颈段和颈升动脉。胸段椎骨来自肋间后动脉和肋下动脉。腰段来自腰动脉。骶、尾段来自髂腰动脉、骶外侧动脉和骶正中动脉。
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:watermark(/images/watermark_5000_10percent.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/overview_image/1062/nHj4gyZeX6lEMhkHtTxow_arteries-of-the-sacrum_cn.jpg){kind=logo}
浏览下方图谱集，进一步学习脊柱动脉的知识。
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/aorta-thoracica-6/tXf28p9TRsAJEkvpazjg_Thoracic_aorta.jpg "降主动脉 (Descending thoracic aorta)；图像：Rebecca Betts"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/vertebral-artery/sxopw5cLOIS4IAZvDSJZQ_Arteria_vertebralis_01.png "椎动脉 (Vertebral artery)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/arteria-cervicalis-ascendens/Ae7pI8MkoMZcSlpMaxcCKg_ascending-cervical-artery-2.jpg "颈升动脉 (Ascending cervical artery)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/arteriae-intercostales-posteriores/YfbJOjcIei8RMn8GtPHbQ_Arteriae_intercostales_posteriores_01.png "肋间后动脉 (Posterior intercostal artery)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/arteria-subcostalis/YpvQzkHuSPBWJ9zZ1vfLg_Subcostal_artery.png "肋下动脉 (Subcostal artery)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/arteriae-lumbales/FjWU5I5Fxvx11o752ySjA_Arteriae_lumbales_01.png "腰动脉 (Lumbar arteries)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/iliolumbar-artery/O1msXENwnoqxU4VUD9w_10iliolumbar_artery.png "髂腰动脉 (Iliolumbar artery)；图像：Liene Znotina"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/lateral-sacral-artery-3/xXUtuiJL6cw382QJCEUCtg_11lateral_sacral_artery.png "骶外侧动脉 (Lateral sacral artery)；图像：Liene Znotina"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/median-sacral-artery-5/9Xw70J3yqzhAvhfdz9UOuA_2amedian_sacral_artery.png "骶正中动脉 (Median sacral artery)；图像：Liene Znotina"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/posterior-intercostal-arteries-4/ufgGrvVS0QylyQTRYrFHQ_Posterior_intercostal_artery.png "肋间后动脉 (Posterior intercostal artery)；图像：Rebecca Betts"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/periosteal-arteries/6Fe4SZA9O3Gm0f9N7KZD6g_periosteal_arteries.jpg "骨膜动脉 (Periosteal arteries)；图像：Rebecca Betts"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/ramus-dorsalis-arteriae-intercostalis-posterioris/OiFpNOeEsUMjpPj8HejUyA_Dorsal_branch_of_posterior_intercostal_artery.png "肋间后动脉背侧支 (Dorsal branch of posterior intercostal artery)；图像：Rebecca Betts"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/ramus-spinalis/5yJIKNg3Fs5lBEilT5NhLw_Spinal_arterial_branch.png "肋间后动脉脊支 (Spinal branch of posterior intercostal artery)；图像：Rebecca Betts"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/postcentral-artery/HwXrcT3MrF1dINfjXCihg_Postcentral_artery.png "脊髓中央后动脉 (Postcentral artery)；图像：Rebecca Betts"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/prelaminar-artery/kOPWvmQ8ptwr7kk30Gw_Prelaminar_branch_magni.png "板前动脉 (Prelaminar artery)；图像：Rebecca Betts"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/anterior-radicular-artery/nDGhvKUSsoS8w83H0v9qeQ_Anterior_radicular_artery.png "前根动脉 (Anterior radicular artery)；图像：Rebecca Betts"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/posterior-radicular-artery/iauywL96p7HMh9rCHVDPjw_Posterior_radicular_artery.png "后根动脉 (Posterior radicular artery)；图像：Rebecca Betts"){kind=logo}
降主动脉
Descending thoracic aorta
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同义词：
无
进行测验
要记住的动脉好多啊，来做下测验巩固吧！
小结
|
按区域划分的来源动脉 |
颈段： 椎动脉和颈升动脉 |
| 单节椎骨相关的动脉 |
骨膜支、赤道支、滋养支、节段性脊支、椎板前支、椎体后支和根动脉 |
继续学习
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