Lower Limb. What is a limb? Skeleton Joints Pelvis or limb girdle Hip/Hip Muscles Lumber and sacral plexus—getting spinal nerves out onto limb Muscles—anterior and posterior compartments Surface anatomy. Skeleton (homologous with upper limb) Muscles--anterior, posterior compartments
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Sacral plexus (sciatic nerve)
With leg out to side like quadruped, lumbar-anterior, sacral-posterior makes sense
Dorsal becomes anterior: thus “dorsiflexion” and extension in anterior compartment (unlike upper limb)
Ventral becomes posterior: thus flexion is in posterior compartment (unlike upper limb)