Local and general anesthetics

Question 1

General anesthesia action

Answer 1

Loss of consciousness: Hypnosis
Loss of sensitivity: Analgesia
Loss of reflex activity: Autonomic protection
Loss of motility: Muscle relaxation

Question 2

Characteristics of local anesthesia

Answer 2

Nerve conduction block
Nociceptive (pain) impulses block
The smaller the nerve diameter the more sensitive they are to anesthetics

Question 3

Mechanism of action

Answer 3

Decrease membrane permeability to Na+ entry
Decrease depolarization by blocking Na+
Decrease action potential propagation
Increase excitability treshold
Decrease conduction