Anatomy: Lower Limb

What are the contents of the femoral triangle from lateral to medial?

Femoral Nerve, Femoral Artery, Femoral Vein, and the Femoral Canal (containing lymphatics).

How many tarsal bones are found in the human foot?

Seven (Talus, Calcaneus, Navicular, Cuboid, and three Cuneiforms).

What is the primary mechanical function of the Anterior Cruciate Ligament (ACL)?

To prevent anterior translation of the tibia relative to the femur.

From which spinal nerve roots does the sciatic nerve originate?

L4, L5, S1, S2, and S3.

What is the thick connective tissue on the sole of the foot that supports the longitudinal arch?

Plantar fascia (or plantar aponeurosis).

Which ligament is most commonly injured during an inversion ankle sprain?

Anterior talofibular ligament (ATFL).

In the femoral triangle, which structure is located most medially within the femoral sheath?

The femoral canal (containing lymphatics and Cloquet's node).

Injury to which nerve results in 'foot drop' due to the loss of dorsiflexion?

Common peroneal (fibular) nerve.

Which nerve provides motor innervation to the muscles of the posterior compartment of the leg?

Tibial nerve.

What movement does the Posterior Cruciate Ligament (PCL) primarily resist?

Posterior translation of the tibia on the femur.