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.
Meralgia paresthetica occurs when the lateral femoral cutaneous nerve â which supplies sensation to the surface of your outer thigh â becomes compressed, or pinched.. The lateral femoral cutaneous nerve is purely a sensory nerve and doesn't affect your ability to use your leg muscles.eralgia paresthetica occurs when the lateral femoral cutaneous nerve â which supplies sensation to the surface of your outer thigh â becomes compressed, or pinched.. The lateral femoral cutaneous nerve is purely a sensory nerve and doesn't affect your ability to use your leg muscles.