Local anesthetics can be studied through different methods including nerve block anesthesia, surface anesthesia, and infiltration anesthesia procedures. Nerve block anesthesia is tested on frogs by assessing foot withdrawal reflex, surface anesthesia procedure examines topical application to numb surface areas, and infiltration anesthesia involves injection around incision sites to numb deeper tissues for procedures.

1. To Study local anesthetic by
different methods
Dr.Nitin Kumar Sen
Assistant Professor
Department of Pharmacology
SJIPR

2. Anesthesia
Anesthesia is the use of medicines to prevent pain during surgery and other procedures.
These medicines are called anesthetics. They may be given by injection, inhalation, topical
lotion, spray, eye drops, or skin patch. They cause you to have a loss of feeling or
awareness.

3. Types of anesthesia
● Local anesthesia numbs a small part of the body. It might be used on a tooth that
needs to be pulled or on a small area around a wound that needs stitches. You are
awake and alert during local anesthesia.
● General anesthesia affects the whole body. It makes you unconscious and unable to
move. It is used during major surgeries, such as heart surgery, brain surgery, back
surgery, and organ transplants.

7. Procedure
A. Nerve block(plexus) anesthesia procedure (foot- withdrawal
reflex in frog)

11. Procedure
B. Surface anaesthesia procedure

13. Procedure
C.Infiltration anaesthesia Procedure