Hiatus saphenus
The Hiatus saphenus (Latin: “hidden slit”) is located in the Trigonum femorale and denotes an opening at the medial edge of the fascia lata. In the saphenous hiatus, the femoral artery divides into its 3 superficial branches and one deep branch. The superficial arteries: Arteria epigastrica superficialis, arteria pudenda externa and arteria circumflexa ilium superficialis run through the hiatus saphenus.
Furthermore, the “venous star” lies directly at the saphenous hiatus. The smaller superficial veins and the saphenous vein lead into the deep femoral vein. In addition, the saphenous hiatus also represents the external hernial orifice of a femoral hernia.
Musculus gracilis
The Musculus gracilis, also known as the “slender muscle” or “virgin keeper”, is a thin, superficial thigh muscle that is one of the adductors. It is located on the inner side of the thigh and originates from the pubic bone (Os pubis) and the lower edge of the symphysis. From there, it moves to the shinbone, where it has its common attachment (Pes anserinus superficialis) together with the tendons of the sartorius and semitendinosus muscles.
The gracilis muscle is innervated by the obturator nerve. Its function is adduction (pulling the leg towards the body) and flexion in the hip, as well as internal rotation and flexion in the knee.
