Saphenous opening

Saphenous opening (also known as the fossa ovalis) is an anatomical feature in the human body, specifically located in the upper part of the medial aspect of the thigh. It is an oval-shaped aperture in the fascia lata, the deep fascia of the thigh. The saphenous opening is the point of entry for the great saphenous vein into the deep venous system.

Etymology

The term "saphenous" is derived from the Greek word "saphēnēs," meaning "clearly visible," a reference to the prominent visibility of the great saphenous vein. The term "fossa ovalis" is Latin for "oval ditch," describing the shape of the opening.

Anatomy

The saphenous opening is approximately 3.75 cm in length and is located 3-4 cm below the inguinal ligament. It is covered by a thin, cribriform fascia, which is perforated by numerous small vessels and lymphatics. The great saphenous vein, after passing through this opening, drains into the femoral vein.

Clinical significance

The saphenous opening is of clinical importance in surgery and medicine. It is the site of incision for the surgical procedure known as saphenous vein stripping, which is performed to treat varicose veins. It is also the site of potential hernias, known as femoral hernias.

Related terms

• Fascia lata
• Great saphenous vein
• Femoral vein
• Inguinal ligament
• Varicose veins
• Femoral hernia

See also

• List of human anatomical features

Saphenous opening

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  Gray's Anatomy Plate 431
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  Gray's Anatomy Plate 1245
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  Gray's Anatomy Plate 580
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