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Encyclopedia > Femoral sheath
Femoral sheath
Femoral sheath laid open to show its three compartments.
Structures passing behind the inguinal ligament.
Gray's subject #157 625
Dorlands/Elsevier s_10/12732844

The femoral sheath (crural sheath) is formed by a prolongation downward, behind the inguinal ligament, of the fasciƦ which line the abdomen, the transversalis fascia being continued down in front of the femoral vessels and the iliac fascia behind them. Image File history File links Download high resolution version (500x623, 157 KB) Summary Licensing File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Wikipedia:Grays Anatomy images with missing articles 11 Abdominal internal oblique muscle Abdominal external oblique... Image File history File links Gray546. ... Elseviers logo Elsevier, the worlds largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. ... The inguinal ligament is a band running from the pubic tubercle to the anterior superior iliac spine. ... The abdomen is a part of the body. ... The transversalis fascia is a thin aponeurotic membrane which lies between the inner surface of the Transversus and the extraperitoneal fat. ...


The sheath assumes the form of a short funnel, the wide end of which is directed upward, while the lower, narrow end fuses with the fascial investment of the vessels, about 4 cm. below the inguinal ligament. The inguinal ligament is a band running from the pubic tubercle to the anterior superior iliac spine. ...


It is strengthened in front by a band termed the deep crural arch.


The lateral wall of the sheath is vertical and is perforated by the lumboinguinal nerve; the medial wall is directed obliquely downward and lateralward, and is pierced by the great saphenous vein and by some lymphatic vessels. Great saphenous vein and its tributaries. ... In mammals including humans, the lymphatic vessels (or lymphatics) are a network of thin tubes that branch, like blood vessels, into tissues throughout the body. ...


The sheath is divided by two vertical partitions which stretch between its anterior and posterior walls.


The lateral compartment contains the femoral artery, and the intermediate the femoral vein, while the medial and smallest compartment is named the femoral canal, and contains some lymphatic vessels and a lymph gland imbedded in a small amount of areolar tissue. Femoral artery and its major branches - right thigh, anterior view. ... Grays Fig. ... The lateral compartment of the femoral sheath contains the femoral artery, and the intermediate the femoral vein, while the medial and smallest compartment is named the femoral canal, and contains some lymphatic vessels and a lymph gland imbedded in a small amount of areolar tissue. ...


The femoral canal is conical and measures about 1.25 cm. in length.


Its base, directed upward and named the femoral ring, is oval in form, its long diameter being directed transversely and measuring about 1.25 cm.


The femoral ring is bounded in front by the inguinal ligament, behind by the Pectineus covered by the pectineal fascia, medially by the crescentic base of the lacunar ligament, and laterally by the fibrous septum on the medial side of the femoral vein. The inguinal ligament is a band running from the pubic tubercle to the anterior superior iliac spine. ... The pectineus muscle is a muscle in the inner thigh, by the femur. ... Grays Fig. ...


The spermatic cord in the male and the round ligament of the uterus in the female lie immediately above the anterior margin of the ring, while the inferior epigastric vessels are close to its upper and lateral angle. Male Anatomy The spermatic cord is the name given to the cord-like structure formed by the vas deferens and surrounding tissue (veins, arteries, nerves, and lymphatic vessels) that run from the abdomen down to each testicle. ... The round ligament originates at the uterus horns, that is, the point where the uterus and the uterine tubes meet. ... The uterus or womb is the major female reproductive organ of most mammals, including humans. ... Grays Fig. ...


The femoral ring is closed by a somewhat condensed portion of the extraperitoneal fatty tissue, named the septum femorale (crural septum), the abdominal surface of which supports a small lymph gland and is covered by the parietal layer of the peritoneum. In mammals including humans, the lymphatic vessels (or lymphatics) are a network of thin tubes that branch, like blood vessels, into tissues throughout the body. ... In higher vertebrates, the peritoneum is the serous membrane that forms the lining of the abdominal cavity - it covers most of the intra-abdominal organs. ...


The septum femorale is pierced by numerous lymphatic vessels passing from the deep inguinal to the external iliac lymph glands, and the parietal peritoneum immediately above it presents a slight depression named the femoral fossa. In higher vertebrates, the peritoneum is the membrane that forms the lining of the abdominal cavity - it covers most of the intra-abdominal organs. ...


External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. Georgetown University is a private university in the United States, located in Georgetown, a neighborhood of Washington, D.C. It is both the oldest Roman Catholic and oldest Jesuit university in the United States, having been founded on January 23, 1789 by Archbishop John Carroll. ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...



 
 

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