What is the mnemonic navel used for?
The well-described NAVEL mnemonic (see the image below) has been used to help medical students and surgical trainees remember the relationship of the femoral sheath structures in a lateral-to-medial direction: femoral Nerve, femoral Artery, femoral Vein, Empty space, and Lymphatics.
What are the branches of the femoral nerve?
Femoral nerve
| Origin | Lumbar plexus (L2-L4) |
|---|---|
| Branches | Motor: Nerve to pectineus, nerve to sartorius, muscular branches Sensory: Medial femoral cutaneous nerve of thigh, intermediate femoral cutaneous nerve of thigh, saphenous nerve |
What nerve passes through the femoral triangle?
The primary nerve contained within the femoral triangle is the femoral nerve, arising from L2, L3, and L4. It enters the femoral triangle inferior to the inguinal ligament, external to the femoral sheath, and is the most lateral of the significant structures contained within the triangle.
What is the femoral triangle?
The femoral triangle is a hollow region located in the supero-medial part of the anterior thigh. It appears most prominently with hip flexion, abduction and internal rotation. It is an easily accessible area through which multiple neurovascular structures pass through.
What is femoral ring?
The femoral ring is the superior rounded opening of the conical femoral canal. Its boundaries are: lateral: femoral vein within the intermediate compartment of the femoral sheath. posterior: pectineal ligament overlying the pectineus muscle and its fascia covering the superior pubic ramus.
How do you test for femoral nerve damage?
To diagnose femoral nerve dysfunction, your doctor may:
- Take a detailed medical history.
- Give you a physical examination.
- Order electromyography to see how well your affected nerves and muscles function.
- Perform nerve conduction tests to test function in specific nerves.
- Order an MRI to check for injuries or tumors.
What nerve runs through groin?
The lateral femoral cutaneous nerve, which runs through the pelvis, groin and into the thighs, can become compressed due to swelling, trauma or pressure in the surrounding areas. Common causes of meralgia paresthetica may include: Repetitive motion of the legs.
What lies in the femoral triangle?
The floor of the femoral triangle is comprised of the adductor longus, pectineus (medially), psoas major and illiacus muscles (laterally). The floor is gutter shaped since all the muscles forming the floor pass to the posterior aspect of the femur.
Is lateral femoral cutaneous nerve in the femoral triangle?
The following structures are contained within the femoral triangle (from lateral to medial): Lateral cutaneous nerve of thigh – It crosses the lateral angle of the triangle, runs on the lateral side of the thigh and ends by dividing into anterior and posterior branches.
Is femoral canal same as femoral triangle?
The femoral canal is the medial compartment of the femoral sheath, an inverted cone-shaped fascial space medial to the common femoral vein within the upper femoral triangle. It is only 1-2 cm long and opens superiorly as the femoral ring.