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Transversus Abdominis Muscle
腹横肌
The lateral abdominal muscles are part of the tension system of the abdominal wall musculature. Together with the anterior abdominal muscles, they form the musculature of the anterior body wall.
腹外侧肌群参与构成腹壁肌肉组织的张力系统。它们与腹前侧肌群一起，形成前体壁的肌肉系统。
The lateral abdominal muscles are made up of the abdominal external oblique muscle, abdominal internal oblique muscle, and the transversus abdominis muscle which is the focus of this short video tutorial.
腹外侧肌群由腹外斜肌、腹内斜肌，以及本节课的重点--腹横肌组成。
The transversus abdominis muscle has 4 points of origin running from the inner surface of the 7th to 12th costal cartilages, the thoracolumbar fascia, the iliac crest horizontally, and the inguinal ligament. It has its insertion on the linea alba.
腹横肌有 4 个起点，即第 7-12 肋软骨内表面、胸腰筋膜、髂嵴和腹股沟韧带。它止于腹白线。
The innervation of the transverse abdominis is supplied by the 7th to 12th intercostal nerves as well as the branches of the lumbar plexus namely the iliohypogastric nerve and the ilioinguinal nerve.
腹横肌由第 7-12 肋间神经，以及腰丛神经分支--髂腹下神经和髂腹股沟神经支配。
The aponeurosis of the lateral abdominal muscles build the rectus sheath, a tendinous envelope for the rectus abdominis muscle.
腹外侧肌群的腱膜构成腹直肌鞘，即腹直肌的腱膜。
It is divided into an anterior and posterior layer which interdigitate in the median line called the linea alba.
它分为前、后两层，在称为腹白线的中线处互相交叉。
Above the arcuate line, about 4-5 cm caudal of the umbilicus, the anterior layer of the rectus sheath consists of the aponeurosis of the internal and external oblique and the posterior layer is made up of the aponeurosis of the internal oblique and transverse abdominis.
在弓状线上，脐尾侧约 4-5 cm处，腹直肌鞘前层由腹内斜肌和腹外斜肌的腱膜组成，后层由腹内斜肌和腹横肌的腱膜组成。
Below the arcuate line, the anterior layer of the rectus sheath is built by the aponeurosis of all 3 lateral abdominal muscles whereas the posterior layer is only covered by the transverse fascia and the peritoneum.
在弓状线下，腹直肌鞘前层由腹外侧肌群的所有 3 种肌肉的腱膜构成，而后层仅由腹横筋膜和腹膜覆盖。
The abdominal muscles are responsible for the tension of the anterior body wall. In collaboration with the back musculature, they stabilize the vertebral column and move the trunk.
腹部肌肉是前体壁张力的来源。它们与背部肌肉组织协作，稳定脊柱，移动躯干。
Through abdominal press, they increase the intra-abdominal pressure and, thereby, support emptying processes such as defecation and urination and also support exhalation.
腹部下压使腹内压升高，从而支持排便和排尿等排空过程，也支持呼气过程。
A unilateral contraction of the transversus abdominis leads to an ipsilateral rotation along with the internal oblique muscle.
腹横肌单侧收缩使躯干向同侧旋转，腹内斜肌亦然。
Iliohypogastric
（图源：太帅图库）
Ilioinguinal
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