It covers the anterior and posterior surfaces of the upper three-quarters of the rectus abdominis muscle, and the lower quarter of its anterior surface.
Where is the rectus sheath found?
The rectus sheath, also called the rectus fascia, is formed by the aponeuroses of the transverse abdominal and the internal and external oblique muscles. It contains the rectus abdominis and pyramidalis muscles.
What is rectus sheath?
The rectus sheath is the durable, resilient, fibrous compartment that contains both the rectus abdominis muscle and the pyramidalis muscle. The fascial coverings of the external oblique, internal oblique, and transversus abdominis muscles comprise the rectus sheath.
What is the function of the rectus sheath?
The function of the rectus sheath is to protect the muscles and vessels which it encloses. In addition, keeping the rectus abdominis and pyramidalis muscle together helps in providing maximal compression of and support to abdominal viscera.
Is the rectus sheath part of the abdominal wall?
The rectus sheath encloses the rectus abdominis and pyramidalis muscles and forms an important component of the anterior abdominal wall.
What is the rectus sheath formed from?
The rectus sheath is made up of two parts, known as the posterior sheath and the anterior sheath. These sheaths are made of fibers of the transversus abdominis, internal abdominal oblique (IAO), and external abdominal oblique (EAO), which are muscles of the abdomen.
What is a rectus in anatomy?
Rectus abdominis, informally known as the abs muscle, is a long muscle of the anterior abdominal wall. In those with low body fat, it is clearly visible beneath the skin forming the ‘six pack’. It extends from the rib cage all the way to the pubic bone.