腹直肌鞘: poneurosis of extemal Rectus abdominis muscle ternal abdominal nominal oblique muscle Linea alba ounf'zerosis of transversus abdominis muscle 构成:由腹外 侧壁三层阔肌 Extraperitoneal rosis of intemal abdominal oblique muscle splits to form anterior and posterior layers of rectus sheath usde joins posterior layer. Anterior and posterior layers of rectus sheath unite medially to form linea aly s abdominis 的腱膜构成。 ection below arcuate line Aponeurosis of external abdominal oblique muscle Anterior layer of rectus sheath Rectus abdominis muscle nternal abdominal bdominal oblique muscle 腹直肌鞘分 n Transversus abdominis muscle 为前、后二层
构成：由腹外 侧壁三层阔肌 的腱膜构成。 腹直肌鞘分 为前、后二层。 腹直肌鞘：
腹直肌鞘前层: 腹直肌 鞘前层 由腹外斜肌 Rectus abdominis mus Internal abdominal l oblique musde Linea alb 腱膜和腹内斜 肌腱膜的前层 Peritoneum of rectus sheath (subserous) tissue Transversalis fascia ial oblique muscle splits to form anterior and posterior layers of 愈合而成。 muscle joins posterior layer. Anterior and posterior layers of rectus sheath unite medially to form linea 3/bu abdominis External abdominal abdominal oblique muscle Anterior layer of rectus sheath Rectus abdominis muscle Internal abdominal abdominis muscle ligament and folt Subcutancous fat Extraperitoneal vesical (superficial fascial
腹直肌鞘前层： 由腹外斜肌 腱膜和腹内斜 肌腱膜的前层 愈合而成。 腹直肌 鞘前层
腹直肌鞘后层: nominal oblique musde Anterior layer of rectus sheath Rectus abdominis muscle Internal abdominal Linea alba neurosis of transvers 由腹内斜 肌腱膜的后层 Peritoneum Extraperitoneal Derficlal fascia) 和腹横肌腱膜 neurosis of exte s of transversus abdominis de joins posterio 腹直肌 to form linea alba 愈合而成。 abdominal oblique 鞘后层 Aponeurosis of internal nominal oblique muscle oblique muscle neurosis of transversus hominis musil bdominis musclo Peritoneum Urach Subcutaneous fat
腹直肌鞘后层： 由腹内斜 肌腱膜的后层 和腹横肌腱膜 愈合而成。 腹直肌 鞘后层
peas 腹直肌鞘前 层包被整个腹 直肌 antenor 同间神经 us anterior us lateralis 腹直肌鞘 costales 前层 m, obliqui minas guineas uraeus
腹直肌鞘前 层包被整个腹 直肌。 腹直肌鞘 前层
腹直肌鞘后 层在脐下4~5cm 处缺如,而形成 凸向上方的弓 形线称弓状线。 abdominis nede 弓状线
腹直肌鞘后 层在脐下4~5cm 处缺如，而形成 一凸向上方的弓 形线称弓状线。 弓状线