Is Facial Local Hemp Harmful To The Body
Dec 05, 2022
Local anesthetic drugs are drugs that act on local nerve endings or nerve stems to temporarily block the conduction of sensory (afferent) nerve impulses and make local pain disappear temporarily.
The generation and conduction of nerve impulses depend on a series of changes in the permeability of nerve membranes to ions. At rest, calcium ions bind to phospholipid proteins on the membrane, preventing sodium ions from flowing in. When excited, calcium ions leave the binding point and sodium ions flow in large quantities, resulting in action potential and nerve impulse and conduction.
The effect of local anesthetic drugs is to firmly occupy the calcium ion binding point, prevent sodium ion flow, resulting in action potential can not produce, nerve conduction block, produce local anesthesia.
