Figure Ql shows the typical electrical recording of movement artifacts during theresting potential and also the action potential when an adequate stimulus isdelivered.Potential overshoot (, > 0)Movement artifactAction potential-80Stimulus artifactResting potentialFigure QlIn your own words, discuss the phenomena occur during the resting stateand active state until the equilibrium potential is established.(a)Membrane potential (m), mV

Neurons are the basic structures and functional units of the nervous system. The axon or the nerve…

Answered: Figure Ql shows the typical electrical…

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter4: Principles Of Neural And Hormonal Communication

Section: Chapter Questions

Problem 3TAHL

See similar textbooks

Similar questions

Figure 35.11 Potassium channel blockers, such as amiodarone and procainamide, which are used to treat abnormal electrical activity in the heart, called cardiac dysrhythmia, impede the movement of K+ through voltage-gated K+ channels. Which part of the action potential would you expect potassium channels to affect?
Which of the following voltages would most likely be measured during the relative refractory period? +30 mV 0 mV -45 mV -80 mv
Conformational changes in channel proteins brought about by voltage changes are responsible for opening and closing Na+ and K+ gates during the generation of an action potential. (True or false?)
Define an action potential.
The giant axon of the squid (Figure Q11–3) occu-pies a unique position in the history of our understandingof cell membrane potentials and nerve action. When anelectrode is stuck into an intact giant axon, the membranepotential registers –70 mV. When the axon, suspended in abath of seawater, is stimulated to conduct a nerve impulse,the membrane potential changes transiently from –70 mVto +40 mV.
IPSP differs from EPSP in :-a- being of shorter durationb- being unable o summate spatiallyc- moving the membrane potential away from thresholdd- depending upon opening of voltage K + channels
Suppose you placed an isolated neuron in a solution similar toextracellular fluid and later transferred the neuron to a solution lackingany sodium ions. What change would you expect in the resting potential?
Explain how the changes in Na+ and K+ ion concentrationsthat occur during an action potential are associated withdepolarization and repolarization.
What is the approximate magnitude of the IPSP (how many mV)?What is the approximate magnitude of the EPSP (how many mV)?If the IPSP had not occurred, what would be the difference between the EPSP and the thresholdrequired to produce an action potential?
A muscle cell contains acetylcholine receptors that act as ligand-gated cation channels,and it also contains voltage-gated Na+ channels of the type found in neurons. Intheory, could a muscle cell get away with having only acetylcholine-gated cationchannels, which would serve the dual purpose of receiving neurotransmitter signalsand propagating action potentials? Why or why not?
The membrane potential labeled (0) is due to which of the following (when compared to (3) potential. (A) voltage-gated Na+ channels (B) voltage-gated K+ channels (C) voltage-gated slow Ca++ channels (D) voltage-gated fast Ca++ channels (E) voltage-gated transient Ca++ channels (F) funny channels
Receptor potential initiated by an adequate stimulus :-a- develops always at it full magnitudesb- undergoes temporal summation onlyc- undergoes spatial summation onlyd- could initiate an action potential

SEE MORE QUESTIONS

Recommended textbooks for you

Human Physiology: From Cells to Systems (MindTap …

Biology

ISBN:

9781285866932

Author:

Lauralee Sherwood

Publisher:

Cengage Learning

Biology 2e

Biology

ISBN:

9781947172517

Author:

Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:

OpenStax

Biomedical Instrumentation Systems

Chemistry

ISBN:

9781133478294

Author:

Chatterjee

Publisher:

Cengage

Human Physiology: From Cells to Systems (MindTap …

Biology

ISBN:

9781285866932

Author:

Lauralee Sherwood

Publisher:

Cengage Learning

Biology 2e

Biology

ISBN:

9781947172517

Author:

Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:

OpenStax

Biomedical Instrumentation Systems

Chemistry

ISBN:

9781133478294

Author:

Chatterjee

Publisher:

Cengage

Anatomy & Physiology

Biology

ISBN:

9781938168130

Author:

Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:

OpenStax College

Human Biology (MindTap Course List)

Biology

ISBN:

9781305112100

Author:

Cecie Starr, Beverly McMillan

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS