1 Use crutches to take the weight off your injured leg. 2  Wrap your thigh snugly with a large elastic wrap until you see your doctor.  Use ice packs or cold packs over the injured hamstring. Put the ice pack or cold pack over the elastic wrap and hold it in place with plastic wrap.
Alpha receptors have two main types: alpha 1 and alpha 2. These alpha receptors play very important roles. Generally, the alpha receptors contribute large effects on our bodyâs systems. With regards to our vascular, smooth muscles, alpha receptors can constrict the vessels of our skin and skeletal muscles.
alpha 1 agonists. -drugs, including NE and EPI, that produce contraction of smooth muscle by stimulating alpha 1 receptors. -NE is considered to be the parent compound for the alpha 1 drugs. -alpha adrenergic drugs have chemical structures and produce effects that are almost identical to those of NE. ***vasodilation.