MRCP UK EXAMINATIONS

Detailed explanation-1: -transversus abdominis – the deepest muscle layer. Its main roles are to stabilise the trunk and maintain internal abdominal pressure. rectus abdominis – slung between the ribs and the pubic bone at the front of the pelvis.

Detailed explanation-2: -The main actions for rectus abdominis are: Flexion of the trunk (flexion of thoracic and lumber spine), while it works by drawing pubic symphysis and sternum toward each other. Tense the anterior wall of the abdomen and assist in compressing the contents of the abdomen.

Detailed explanation-3: -Thus, the rectus femoris is used more during 0°–45° hip flexion, to induce anterior tilting and hip flexion of the pelvis, whereas rectus abdominis activation is used for hip flexion at 45° and greater, to induce hip flexion accompanied by posterior tilting of the pelvis.

Detailed explanation-4: -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.

Detailed explanation-5: -Rectus abdominis flexes the trunk anteriorly. Moreover, working together with other abdominal muscles, this muscle compresses the abdominal viscera and increases the intra-abdominal pressure, which has an important function in processes such as forced breathing, labor, defecation and micturition.