第一节　肩　部

图318 腋窝的构成（上口）
Composition of axillary fossa (superior outlet)

图319 腋窝的后壁（前面观）
Posterior wall of the axilla (anterior aspect)

图320 腋窝的后壁（后面观）
Posterior wall of the axilla (posterior aspect)

图321 腋窝的构成（水平断）
Composition of axillary fossa (horizontal section)

图322 腋窝的构成（矢状断）
Composition of axillary fossa (sagittal section)

图323 腋窝后壁及三边孔和四边孔（前面观）
Axillary posterior wall and trilateral foramen, square foramen (anterior aspect)

图324 腋窝后壁及三边孔和四边孔(后面观)
Axillary posterior wall and trilateral foramen, square foramen (posterior aspect)

图325 腋窝的内容
Axillary contents

图326 腋窝的内容与臂丛组成
Axillary contents and brachial composition

图328 臂丛的主要变异
Principle variations of the brachial plexus
A.根异位：C5、C6居前斜角肌前方； B.根变异：前置型，有C4参加；干变异：四干型； C.干变异：双干型，C5～C7成上干，C8、T1成下干； D.股、束变异：二束型，内外侧束合成前束，三后股合成后束； E.束异位：后束向外移位

图329 腋动脉的分段与分支
Segments and branches of the axillary artery

图330 腋动脉的分支类型
Forms of the branches of the axillary artery
A.胸外侧动脉、肩胛下动脉、旋肱后动脉共干；B.胸背动脉和旋肩胛动脉单独起始，无肩胛下动脉；C.胸外侧动脉与肩胛下
动脉共干，旋肱前、后动脉共干；D.肩胛下动脉和旋肱前、后动脉共干；E.存在上肩胛下动脉

图331 腋淋巴结和乳房淋巴管
Axillary lymph nodes and mamma lymph vessels

图332 肌腱袖
Tendon sleeves

图333 三角肌区及肩胛区的结构
Structure of deltoid region and scapular region

图334 肩胛动脉网
Scapular arterial network

图335 肩上区局部解剖1
Topography of superior region of the shoulder 1

图336 肩上区局部解剖2
Topography of superior region of the shoulder 2

图337 锁骨区局部解剖1
Topography of the clavicular region 1

图338 锁骨区局部解剖 2
Topography of the clavicular region 2

图339 肩前区和腋区局部解剖1
Topography of anterior region of the shoulder and the axillary region 1

图340 肩前区和腋区局部解剖2
Topography of anterior region of the shoulder and the axillary region 2

图341 肩前区和腋区局部解剖3
Topography of anterior region of the shoulder and the axillary region 3

图342 肩前区和腋区局部解剖4
Topography of anterior region of the shoulder and the axillary region 4

图343 肩后区和肩胛区局部解剖1
Topography of posterior region of the shoulder and the scapular region 1

图344 肩后区和肩胛区局部解剖2
Topography of posterior region of the shoulder and the scapular region 2