'Voltage clamp' presentation slideshows

The two ions that make up the action potential

The two ions that make up the action potential. The clamp half of the voltage clamp. Axial wire electrodes used in Voltage-Clamp experiments. Hodgkin and Huxley set out to determine which ions carry the current and how the underlying membrane permeability mechanisms worked.

647 views • 53 slides

The two ions that make up the action potential

The two ions that make up the action potential. The clamp half of the voltage clamp. Axial wire electrodes used in Voltage-Clamp experiments. Hodgkin and Huxley set out to determine which ions carry the current and how the underlying membrane permeability mechanisms worked.

729 views • 53 slides

Box 3A The Voltage Clamp Technique

Box 3A The Voltage Clamp Technique. Box 3A The Voltage Clamp Technique. Figure 3.1 Current flow across a squid axon membrane during a voltage clamp experiment. Figure 3.1 Current flow across a squid axon membrane during a voltage clamp experiment (Part 1).

1.82k views • 40 slides

The action potential and cellular excitability

(Chapter 9-8 of KS). The action potential and cellular excitability. 1.- The cellular action potential. 2.- Voltage clamp, current clamp. 3.- Ion channels and the AP. HH theory. 4.- AP propagation and cable properties of nerve and muscle.

640 views • 37 slides

749 views • 36 slides

476 views • 36 slides

Basic Techniques in Electrophysiology In vivo recordings

Basic Techniques in Electrophysiology In vivo recordings. Electroencephalographic recordings in humans and animals Extracellular Recordings in anesthetized animals Extracellular Recordings in vivo in free-moving animals Intracellular Recordings in anesthetized animals (Current- clamp)

839 views • 35 slides

BME 6938 Neurodynamics

428 views • 31 slides

Hodgin & Huxley

Hodgin & Huxley. The problem: Explain action potentials The preparation: loligo giant axons The suspects: Time dependent conductance: Curtis & Cole Multiple batteries in play Likely players Na + , K + : Hodgkin & Katz The method: Voltage Clamp

462 views • 31 slides

Hodgin & Huxley

490 views • 30 slides

Topic 4 The Action Potential Lange

Topic 4 The Action Potential Lange. Biology 463 - Neurobiology. Introduction. Action Potential Cytosol (cytoplasm) has negative charge relative to extracellular space Its pusatile nature allows for neural coding frequency Pattern Action potential components to be examined Spike

445 views • 25 slides

The action potential and cellular excitability

(Chapter 9-8 of KS). The action potential and cellular excitability. 1.- The cellular action potential. 2.- Voltage clamp, current clamp. 3.- Ion channels and the AP. HH theory. 4.- AP propagation and cable properties of nerve and muscle.

381 views • 22 slides

Outline

645 views • 21 slides

Correcting Airway dehydration in Cystic Fibrosis BRETT ROLLINS

Correcting Airway dehydration in Cystic Fibrosis BRETT ROLLINS. March 5, 2009. Context of Study: Cystic Fibrosis. Normal. Mucus Layer. Airways. Airways. Airway Surface Liquid (ASL). Liver. Pancreas. Extended Cilia. Small Intestine. Cell Surface. Reproductive Tract. Cystic Fibrosis.

309 views • 19 slides

Whole-cell vs Cell-attached patch Current Clamp Components of an action potential Voltage Clamp

Outline. Whole-cell vs Cell-attached patch Current Clamp Components of an action potential Voltage Clamp Conductances of an action potential Channel Structure Single channel recordings. Cell-attached Patch. Whole-cell Patch. G Ohm Seal between pipet and membrane.

979 views • 19 slides

LECTURE 4: MEASURING MEMBRANE CONDUCTANCE AND CAPACITANCE & VOLTAGE-CLAMP RECORDING

LECTURE 4: MEASURING MEMBRANE CONDUCTANCE AND CAPACITANCE & VOLTAGE-CLAMP RECORDING. REQUIRED READING: Kandel text, Chapters 8, 9 (beginning), pgs 140-153. We have talked about the properties of solid-state RC electrical circuits.

406 views • 14 slides

Test Review Questions and Electrical Conduction in Axons

Test Review Questions and Electrical Conduction in Axons. 17 February 2012. Voltage Clamp: Vm is stepped to +100mV, Na+ flows outward. Why?. At 100mV, there is more Na inside the cell than outside At 100mV, Na+ ions flow down their electrochemical gradient

223 views • 13 slides

Overvoltage and overcurrent protection

Overvoltage and overcurrent protection. voltage clamp circuits for low voltage applications - surge stopper for high voltage transient. Institute of Nuclear Physics, Krakow, Poland. Voltage clamps for protecting DC circuits. 1. The idea is taken from. for low voltage.

609 views • 10 slides

Computational Cognitive Neuroscience Lab

Computational Cognitive Neuroscience Lab. Today: Second session. Computational Cognitive Neuroscience Lab. Today: Homework is due Friday, Feb 10 This homework has more projects than the last, but fewer questions per project. Bias Weights. Why do we have them?

247 views • 8 slides

Electrophysiology Project Overview

Electrophysiology Project Overview. By Arif Patel, Chris Khalil, and Arlene Pineda.

183 views • 4 slides