Define the most common types of anesthesia

Define the most common types of anesthesia 

Answer:
*-endotracheal: insertion of a tube through the nose or mouth into trachea for ventilation
*-epidural: an injection into the epidural spaces between the vertebrae or epidural black
*-spinal: anesthesia produced by an injection of local anesthesia into the subara chnoid space around the spinal cord
*-general: state of unconsciousness that is accomplished by the use of a drug or combo of drugs administered intramuscularly, rectally, intravenously, or by inhalation
*-regional: interrupts the sensory nerves conductivity in a region of a body and is produced by a field block or nerve block
*-local: anesthetic agent placed directly on the area involved or local infiltration through subcutaneous injection of anesthetic agent
*-patient-controlled analgesia (PCA): allows patients to administer an analgesic drug like morphine to control pain.