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来自维基百科,自由的百科全书
斜方肌(Trapezius),是將頭部和肩部向後拉的背部肌肉。兩塊斜方肌從脊椎和頭骨底部,經過背部和肩部連接到肩胛骨和鎖骨。他們可使頭部抬起和傾斜,並使雙肩抬起或穩定。兩者共同形成一個稱為斜方型的四邊形,其名稱即來自於此。
斜方肌 | |
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基本資訊 | |
起點 | external occipital protuberance, spinous processes of vertebrae C7-T12, Nuchal ligament, Occipital Bone[1]
Medial one-third of superior nuchal line External occipital protuberance Ligamentum nuchae T1-T12 spine Corresponding supraspinous ligaments |
終點 | posterior border of the lateral one-third of the clavicle, acromion process, and spine of scapula |
動脈 | superficial branch of transverse cervical artery or superficial cervical artery [2] |
神經 | accessory nerve (motor) cervical spinal nerves C3 and C4 (motor and sensation)[3] |
相關動作 | Rotation, retraction, elevation, and depression of scapula |
拮抗肌 | 前鋸肌、背闊肌、胸大肌 |
標識字符 | |
拉丁文 | Musculus trapezius |
TA98 | A04.3.01.001 |
TA2 | 2226 |
FMA | FMA:9626 |
格雷氏 | p.432 |
《肌肉解剖學術語》 [在維基數據上編輯] |
斜方肌起於枕外隆凸和枕骨上頸線內三分之一段、頸韌帶、第七頸椎棘突、所有胸椎棘突和相應的棘上韌帶。上束纖維向外和側方延續,止於鎖骨的外側三分之一後緣;其功能為上舉及外旋肩胛骨,協助頭部後仰,側屈及旋轉。下束的纖維向上和側方走行。在肩胛附近聚合成一個腱膜,在肩胛岡內側的三角滑面可以滑動,止於其尖端的一個結節;其功能為下壓肩胛骨。中束纖維水平走行,止於肩峰內側緣,肩胛岡後緣的上唇;其功能為內收(縮回)肩胛骨。
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