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 ?
Toyonaga J, Tsuruya K, Masutani K, et al: Hemorrhagic shock and obstructive uropathy due to a large rectus sheath hematoma in a patient on anticoagulant therapy.
Rectus sheath hematoma: diagnostic classification by CT.
Ultrasonography provides non-invasive real-time imaging of the anatomy for rectus sheath blocks.
With ultrasound imaging becoming increasingly available in anaesthetic practice, the rectus sheath block could play a more prominent role in the provision of anaesthesia and analgesia in selected patients.
The rectus sheath block in paediatric anaesthesia: new indications for an old technique?
The rectus sheath is closed with absorbable sutures, and the skin closed with sub-cuticular absorbable sutures.
The chance of incisional hernia developing is greatly reduced as the skin incision and rectus sheath incision are at right angles reinforcing each other.
The distal catheter had migrated from the peritoneal cavity to a location superficial to the rectus sheath and had become enveloped within a pre-peritoneal CSF pseudocyst.