第三节细胞的生物电现象 chap. 2 The resting membrane potential chap 3 Action potential from Berne Levy Principles of Physiology (4thed)2005
• chap. 2 The resting membrane potential • chap. 3 Action potential 第三节 细胞的生物电现象 from Berne & Levy Principles of Physiology (4th ed) 2005
Observations of Membrane Potentials Extracellular recording Oscilloscope ++++++++ 8■|0 50 90七 T Ime ++++++++十 (a) Nerve cell
Observations of Membrane Potentials • Extracellular recording
o Intracellular recording Oscilloscope ++++++++ 8■0 50 ooo Time +++++++++ (b) Nerve cell
• Intracellular recording
● Voltage clamp macroscopical current 51 Omv 60 外向电流内向电流 一膜电流
• Voltage clamp macroscopical current
Patch clamp FBA 膜电流 电极 指令电压 无关电极 细胞膜.灌流液
• Patch clamp