rectus sheath

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Related to rectus sheath: Linea semilunaris, Arcuate line

rec·tus sheath

sheath of the rectus abdominis, formed by the aponeuroses of the three anterolateral muscles of the abdominal wall that split to enclose the rectus and fuse medially to form the linea alba; it consists of an anterior lamina and a posterior lamina, the latter being absent below the arcuate line.
See also: aponeurosis of external oblique (muscle), aponeurosis of internal oblique muscle.

rectus sheath

A strong fibrous sleeve in which the rectus abdominis and pyramidalis muscles contract. The sheath is formed from the aponeuroses of the abdominal wall muscles as they meet in the linea alba at the abdominal midline.
See also: sheath


[L.] straight.

rectus abdominis muscle
see Table 13.2.
ocular rectus muscle
see Table 13.1F.
rectus sheath
the sleeve of fascia which surrounds the rectus abdominis muscle and which is derived from the aponeurotic tendons of the other abdominal muscles.
References in periodicals archive ?
According to this technique, the posterior rectus sheath and the underlying transversus abdominis muscle are incised and the lateral space is developed.
Rectus sheath hematoma: diagnostic classification by CT.
Prospective randomized observer-blinded study comparing the analgesic efficacy of ultrasound-guided rectus sheath block and local anaesthetic infiltration for umbilical hernia repair.
Spontaneous rectus sheath hematoma in HCV mixed cryoglobulinemia requiring emergency treatment.
Cherry WB, Mueller PS: Rectus sheath hematoma: review of 126 cases at a single institution.
The authors have used a combination of an ultrasound guided bilateral posterior TAP block with a rectus sheath block (i.
This experience has demonstrated that although the spontaneous repair of the internal rectus sheath is complete at 90 days, the absence of incisional hernia in the animals supports the theory that the abdominal wall strength relies in the external rectus sheath rather in the internal one.
We present the case histories of three elderly women with a rectus sheath haematoma, all of whom presented within a month to the same hospital.
Rectus sheath hematoma is an unusual cause of painful abdominal mass.