Regional analgesia
Encyclopedia
Regional analgesia blocks passage of pain
impulses through a nerve
by depositing an analgesic
drug
close to the nerve trunk, cutting off sensory innervation to the region it supplies. The drug is normally injected at a site where the nerve is unprotected by bone.
Pain
Pain is an unpleasant sensation often caused by intense or damaging stimuli such as stubbing a toe, burning a finger, putting iodine on a cut, and bumping the "funny bone."...
impulses through a nerve
Nerve
A peripheral nerve, or simply nerve, is an enclosed, cable-like bundle of peripheral axons . A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons. Nerves are found only in the peripheral nervous system...
by depositing an analgesic
Analgesic
An analgesic is any member of the group of drugs used to relieve pain . The word analgesic derives from Greek an- and algos ....
drug
Medication
A pharmaceutical drug, also referred to as medicine, medication or medicament, can be loosely defined as any chemical substance intended for use in the medical diagnosis, cure, treatment, or prevention of disease.- Classification :...
close to the nerve trunk, cutting off sensory innervation to the region it supplies. The drug is normally injected at a site where the nerve is unprotected by bone.
See also
- Local analgesia
- Infiltration analgesiaInfiltration analgesiaInfiltration analgesia is deposition of an analgesic drug close to the apex of a tooth so that it can diffuse to reach the nerve entering the apical foramina.-See also:*Regional analgesia*Local analgesia...