The adductor magnus is a large triangular muscle, situated on the medial side of the thigh.

The biceps femoris is a muscle of the posterior (the back) thigh. As its name implies, it has two parts, one of which (the long head) forms part of the hamstrings muscle group.

The gracilis (Latin for “slender”) is the most superficial muscle on the medial side of the thigh. It is thin and flattened, broad above, narrow and tapering below.

The pectineus muscle (from the Latin word pecten, meaning comb) is a flat, quadrangular muscle, situated at the anterior part of the upper and medial aspect of the thigh.