Download presentation
Presentation is loading. Please wait.
1
Biophysics of excitable cells
D. Braun / SS 2013 BPZ§4.1
2
Multiple exitatory and inhibitory synaptic contacts allow complex neuronal interconnects
H.Gaub / SS 2007 BPZ§4.1
3
Cell-Semiconductor-Hybrids: Neuron on the Chip
More: Fromherz MPI Martinsried D. Braun / SS 2013 BPZ§4.1
4
The electrical activity of neurons results from the opening and closing of specific ion-channels proteins in the neuron plasma membrane D. Braun / SS 2013 BPZ§4.1
5
Voltage-gated cation channels generate action potentials
D. Braun / SS 2013 BPZ§4.1
6
Membrane depolarizations spread passively only short distances
D. Braun / SS 2013 BPZ§4.1
7
Action potentials are propagated unidirectionally without diminution
Movements of only a few Na+ and K+ ions generate the action potential D. Braun / SS 2013 BPZ§4.1
8
Patch clamps permit measurement of ion movements through single channels
D. Braun / SS 2013 BPZ§4.1
9
Different patch clamping configurations
D. Braun / SS 2013 BPZ§4.1
10
Current flux through individual voltage-gated channels determined by patch clamping of muscle cells
D. Braun / SS 2013 BPZ§4.1
11
All five subunits in the nicotinic acetylcholine receptor contribute to the ion channel
D. Braun / SS 2013 BPZ§4.1
12
P segments form the ion-selectivity filter
D. Braun / SS 2013 BPZ§4.1
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.