FEMORAL SHEATH
Which of the following does not form boundary of femoral ring:
| A | Femoral artery | |
| B | Femoral vein | |
| C |
Femoral nerve |
|
| D |
a & c |
Which of the following does not form boundary of femoral ring:
| A |
Femoral artery |
|
| B |
Femoral vein |
|
| C |
Femoral nerve |
|
| D |
a & c |
A i.e. Femoral Artey; C i.e. Femoral nerve
On an average, the distance between femoral ring and saphenous opening (length of femoral canal) is ‑
| A |
1.25 cm |
|
| B |
2.50 cm |
|
| C |
3.75 cm |
|
| D |
5.00 cm |
Ans. is ‘a’ i.e., 1.25 cm
Structure forming medial boundary of femoral ring is:
| A |
Inguinal ligament |
|
| B |
Pecten pubis |
|
| C |
Lacunar ligament |
|
| D |
Conjoint tendon |
Ans. C i.e. Lacunar ligament
The base or upper end of femoral canal is called femoral ring.
Boundaries:
- Anteriorly- inguinal ligament
- Posteriorly – pectineus and its covering fascia
- Medially- concave margin of lacunar ligament
- Laterally- septum separating it from femoral vein
| A |
Femoral artery |
|
| B |
Femoral nerve |
|
| C |
Femoral vein |
|
| D |
Genitofemoral nerve |
Femoral nerve
Femoral sheath
The femoral sheath is a funnel-shaped fascial prolongation around the proximal part of femoral vessels, situated in the femoral triangle, below the inguinal ligament. It is 3-4 cm long. It is formed by fascia iliaca.
The femoral sheath is divided into 3 separate fascial compartments by septa:‑
- Lateral compartment:- It contains the femoral artery and femoral branch of the genitofemoral nerve.
- Intermediate compartment:- Femoral vein.
- Medial compartment (femoral canal):- It is conical in shape, wider above and narrow below. The wider upper opening is known as the femoral ring, which is potentially a weak point in the lower abdomen and is the site for a femoral hernia. The femoral ring is bounded: Anteriorly by the inguinal ligament, medially by lacunar ligament, posteriorly by pectineus with its covering fascia, and laterally by septum separating it from the femoral vein. The femoral canal contains lymph nodes of Cloquet or Rosenmuller and lymphatics.
