Saphenous opening

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Saphenous opening
The fossa ovalis.
Front of right thigh, showing surface markings for bones, femoral artery and femoral nerve. (Fossa ovalis visible at upper right.)
Latin	hiatus saphenus, fossa ovalis femoris
Gray's	subject #128 469
Dorlands/Elsevier	h_11/12422064

For the structure in the heart, see Fossa ovalis.

At the upper and medial part of the thigh, a little below the medial end of the inguinal ligament, is a large oval-shaped aperture in the fascia lata called the saphenous opening (or saphenous hiatus, or fossa ovalis femoris).

It transmits the great saphenous vein, and other, smaller vessels.

The fascia cribrosa, which is pierced by the structures passing through the opening, closes the aperture and must be removed to expose it.

Additional images

The great saphenous vein and its tributaries at the fossa ovalis.

External links

• Saphenous+opening at eMedicine Dictionary

v • d • e General anatomy of lower limbs
Buttocks	Gluteal sulcus - Gluteal cleft
Thigh	Fascial compartments of thigh (Anterior, Medial, Posterior) Inguinal ligament • Pectineal ligament • Lacunar ligament • Reflected inguinal ligament • Conjoint tendon • Interfoveolar ligament Obturator membrane/Obturator canal Femoral triangle • Femoral sheath (Femoral canal) • Femoral ring Adductor canal • Adductor hiatus fascia/fascia lata (Iliotibial tract, Lateral intermuscular septum of thigh, Medial intermuscular septum of thigh, Fascia cribrosa/Saphenous opening)
Crus (anatomic leg)	Popliteal fossa • Calf • Shin • Pes anserinus • Interosseous membrane of the leg Fascial compartments of leg (Anterior, Lateral, Posterior) fascia/crural fascia (Anterior crural intermuscular septum, Posterior crural intermuscular septum, Transverse intermuscular septum)
Foot	Heel • Toe (Hallux, Fifth toe) • Sole • Achilles tendon • Tarsal tunnel fascia (Plantar fascia) retinacula (Peroneal, Inferior extensor, Superior extensor, Flexor)

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Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .