DEMONSTRATETHEGENESISOEBIPHASICPOTENTIAL
DEMONSTRATE THE GENESIS OF BIPHASIC POTENTIAL
IMPORTANT QUESTIONS1.what's the actionpotential?2.how to record it?
IMPORTANT QUESTIONS ◼ 1.what’s the action potential? ◼ 2.how to record it?
1.Intracellular recording
1.Intracellular recording
Measuringdevice0088AxonRecordingelectrodes+++++
2.Extracellular recording
2.Extracellular recording
StimulusDepolanzaianapplied-ta)ABx++(0)ABx+-enenerveimpulse(o)Nerve fiber
A B A B A B Nerve fiber
How to prepare a sciatic nervepreparation
How to prepare a sciatic nerve preparation.
Animal
Animal
PROCEDURE1. PITHINGPithing is done to destroy the brainand spinal cord by inserting thepithing needle
PROCEDURE 1. PITHING Pithing is done to destroy the brain and spinal cord by inserting the pithing needle
pithing needlegreat foramen
pithing needle great foramen