In the orbit of the eye, also called the eye socket, the lateral rectus muscle helps move the pupil away from the body’s midline. The muscle inserts into the temporal (outer) side of the eyeball and ...

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 ...

The rectus femoris muscle is one of the four major muscles that make up the quadriceps, or the front part of your upper leg. Strengthening the rectus femoris, in particular, can help stabilize your ...