posterior layer of rectus sheath

pos·te·ri·or lay·er of rec·tus sheath

[TA]
the portion of the sheath of the rectus abdominis muscle that lies posterior to the muscle covering only its upper two thirds; it is formed by contributions from the aponeuroses of the internal oblique and transversus abdominis muscles; its free inferior margin forms the arcuate line; it is deficient below this, the posterior aspect of the muscle being covered only by transversalis fascia and peritoneum.
References in periodicals archive ?
4) The skin and anterior layer of rectus sheath were incised and rectus muscle was retracted laterally and posterior layer of rectus sheath was incised in the same plane as that of anterior rectus sheath.
Paramedian incision: The peritoneum, endoabdominal fascia, posterior layer of rectus sheath, the medial fibers of rectus abdominis muscle and anterior layer of rectus sheath were sutured as a single layer.
Paramedian incision: The peritoneum and posterior layer of rectus sheath were closed with Vicryl or Chromic catgut by continuous sutures.
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