You are recording the electrical activity of a cell body with a resting membrane potential of -70 mV. Three differentstimuli are detected by 3 different dendrites at the same time, each changes the voltage of the dendrite to -65 mV.However, the voltage change detected in the cell body of that neuron, is -55 mV. What happened?O temporal summation of IPSPSO spatial summation of IPSPSO temporal summation of EPSPSO spatial summation of EPSPS

Given; Resting membrane potential of the cell= -70mV No. of stimuli detected by the cell= 3 from…

Answered: You are recording the electrical…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Can you help me with this question, please?
Tetrodotoxin from pufferfish is a poison that blocks voltage-gated Na+ channels. Therefore it directly blocks exocytosis of neurotransmitter O action potentials excitatory graded potentials inhibitory graded potentials
More than one answer may apply When voltage gated sodium channels of a resting neuron open, O Na enters the neuron O Cl channels open O the neuron depolarizes O Na leaves the neuron
You are obtaining extracellular recordings from the latetal axons of the earth worm. The distance from the stimulating cathode to the first recording electrode is 60mm and 85mm to the second recording electrode. The time from stimulation to arrival of the action potential at the first recording electrode is 5msec and to the second recording electrode is 10msec. The conduction velocity of this axon would be meters per second. 05 0.2 Ⓒ10 3
Consider the neuron below, which has a membrane resting potential of -70mV, membrane space constant of Imm, membrane time constant of 100ms, and spike firing threshold of -65mV. The neuron receives input from three synapses. Synapse A generates an EPSP of 12mV amplitude and 2ms duration, synapse B generates an EPSP of 8mV amplitude and Ims duration, and synapse C generates an IPSP with an amplitude of -2mV and duration of 3ms. A axon hillock 0.5mm Justify your answers to the following questions mathematically (round distances to nearest 0.5mm). You can neglect propagation time (ie. assume EPSPS/IPSPS arrive at axon hillock at same time irrespective of distance). (a) Would the cell fire an action potential if A is active? (b) Would the cell fire an action potential if A and B are active simultaneously? (c) Would the cell fire an action potential if B is activated twice with a delay of 2ms? (d) Would the cell fire an action potential if all three are simultaneously active? (e) If an…
Matching (may not use al choices; may use some choices more than once) Sección 79. Site of action potential propagation 80. Myelin is found here 81. Voltage gated calcium channels are found here 82. Site of temporal summation 83. Structure involved with signal reception 84. Location of EPSPS Post-synaptic membrane Site of salutatory Conduction 85. 86. 87. Site of spatial summation 88. Ligand (chemical) gated channels are found here 89. _Pre-synaptic membrane Salto de columna A. Dendrites B. Soma C. Axon Hillock D. Aхon E. Synaptic knob
The conduction velocity in nerves is primarily dependent on the O localization of the Na+ / K+ pumps intensity and duration of the stimulus myelination and fiber diameter O fiber length and myelination O fiber length and fiber diameter
Please help me to reorder the items below to correctly label the numbers in the diagram.
At which point in the graph do voltage-gated potassium channels open? (Base your answer to this question on the graph below depicting an action potential.) A B C D E
Membrane permeability at the rising phase of an action potential is dominated by: O Co-transporters Nongated Channels O K+ Voltage-gated Channels O Na+ voltage-gated Channels O Chemically-gated Channels
B A C Match the action potential phase in the plot below with the correct image below showing the Na+/K+ ATPase and voltage-gated K+ and Na+ channels. +50- D -50- -70- 0 E A B M D + OUT -IN [Choose ] [Choose] [Choose] SHE - OUT IN + OUT IN
Dr. Brainy creates a nerve cell that is only permeable to Caesium ions (Cs+1) at rest. She measures that the concentration of Caesium is 400mM outside the cell and only 50 mM inside the cell. She calculates the Equilibrium potential for Cs+1 (Ecs) to be +35 mV. If the cell is only permeable to Cs, the resting membrane potential will be: +58 mV 0 mV +35 mV -58 mV

SEE MORE QUESTIONS

Recommended textbooks for you

Biochemistry

ISBN:

9781319114671

Author:

Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781319114671

Author:

Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781305961135

Author:

Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:

Cengage Learning

Biochemistry

ISBN:

9781305577206

Author:

Reginald H. Garrett, Charles M. Grisham

Publisher:

Cengage Learning

Fundamentals of General, Organic, and Biological …

Biochemistry

ISBN:

9780134015187

Author:

John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson

Publisher:

PEARSON

SEE MORE TEXTBOOKS