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Encyclopedia > Saphenous opening
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). Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... Elseviers logo. ... Found in the right atrium of the heart, the fossa ovalis is an embryonic remnant of the foramen ovale, which normally closes shortly after birth. ... Diagram of the human thigh bone In humans the thigh is the area between the pelvis and buttocks and the knee. ... The inguinal ligament is a band running from the pubic tubercle to the anterior superior iliac spine. ... The deep fascia of the thigh is named, from its great extent, the fascia lata; it constitutes an investment for the whole of this region of the limb, but varies in thickness in different parts. ...

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

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

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