1 A ligand is any molecule that binds to a specific site on a protein or other molecule. In this case, the estrogen hormone 17-beta-estradiol is the ligand, and the estrogen receptor is the protein.  Binding turns on, or activates, a hormone receptor.
A femoral nerve block is a type of regional anesthesia in which the femoral nerve, located in the groin area, is deadened to allow surgery in the leg or knee area.
Definition/Description. Definition. The Femoral Nerve Tension Test also known as the Femoral Nerve Stretch (Test) is a test used to screen for sensitivity to stretch soft tissue at the dorsal aspect of the leg, possibly related to nerve root impingements.Description.he femoral nerve tension test is used to screen for sensitivity to stretch soft tissue at the dorsal aspect of the leg, possibly related to root impingements.