'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.

662 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.

747 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).

1.92k 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.

670 views • 37 slides

784 views • 36 slides

487 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)

879 views • 35 slides

BME 6938 Neurodynamics

445 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

473 views • 31 slides

Hodgin & Huxley

501 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

463 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.

408 views • 22 slides

Outline

687 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.

324 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.

1.08k 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.

424 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

234 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.

675 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?

277 views • 8 slides

Electrophysiology Project Overview

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

220 views • 4 slides