Anatomy & Physiology: An Integrative Approach
2nd Edition
ISBN: 9780078024283
Author: Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 12.8, Problem 21WDYL
How are EPSP and IPSP graded potentials established in the receptive segment of a neuron?
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Chapter 12 Solutions
Anatomy & Physiology: An Integrative Approach
Ch. 12.1 - Prob. 1WDYLCh. 12.1 - What are the two primary functional divisions of...Ch. 12.2 - Prob. 3WDYLCh. 12.2 - Prob. 4WDYLCh. 12.2 - Prob. 5WDYLCh. 12.2 - Prob. 6WDYLCh. 12.2 - Prob. 7WDYLCh. 12.2 - What are the three connective tissue wrappings in...Ch. 12.3 - Prob. 9WDYLCh. 12.4 - If a person has a brain tumor, is it more likely...
Ch. 12.4 - Prob. 11WDYLCh. 12.4 - Prob. 12WDYLCh. 12.4 - Prob. 13WDYLCh. 12.5 - Prob. 14WDYLCh. 12.5 - Prob. 15WDYLCh. 12.6 - Prob. 16WDYLCh. 12.6 - Prob. 17WDYLCh. 12.7 - Prob. 18WDYLCh. 12.7 - Prob. 19WDYLCh. 12.7 - Prob. 20WDYLCh. 12.8 - How are EPSP and IPSP graded potentials...Ch. 12.8 - Prob. 22WDYLCh. 12.8 - How does depolarization and repolarization occur...Ch. 12.8 - Prob. 24WDYLCh. 12.8 - Prob. 25WDYLCh. 12.9 - Prob. 26WDYLCh. 12.9 - Prob. 27WDYLCh. 12.9 - Prob. 28WDYLCh. 12.9 - Prob. 29WDYLCh. 12.10 - Prob. 30WDYLCh. 12.10 - Prob. 31WDYLCh. 12.11 - Prob. 32WDYLCh. 12.11 - Prob. 33WDYLCh. 12 - _____ 1. The cell body of a neuron does all of the...Ch. 12 - Prob. 2DYKBCh. 12 - Prob. 3DYKBCh. 12 - Prob. 4DYKBCh. 12 - Prob. 5DYKBCh. 12 - Prob. 6DYKBCh. 12 - _____ 7. An action potential is generated when...Ch. 12 - Prob. 8DYKBCh. 12 - Prob. 9DYKBCh. 12 - Prob. 10DYKBCh. 12 - What are the four structural types of neurons? How...Ch. 12 - Prob. 12DYKBCh. 12 - How does myelination differ between the CNS and...Ch. 12 - Describe the procedure by which a PNS axon may...Ch. 12 - Prob. 15DYKBCh. 12 - Prob. 16DYKBCh. 12 - Explain summation of EPSPs and IPSPs and the...Ch. 12 - Graph and explain the events associated with an...Ch. 12 - Prob. 19DYKBCh. 12 - Prob. 20DYKBCh. 12 - Prob. 1CALCh. 12 - Prob. 2CALCh. 12 - Prob. 3CALCh. 12 - Prob. 4CALCh. 12 - Sarah wants to call her new friend Julie and needs...Ch. 12 - Over a period of 6 to 9 months, Marianne began to...Ch. 12 - Prob. 2CSLCh. 12 - Prob. 3CSL
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- Do Excitatory Potentials (EPSPs) and Inhibitory Potentials (IPSPs) only come into play at the synapses due to the NT's that bind to receptors on post-synaptic cell? And if an action potential is fired in the post-synaptic cell will it propagate from node to node dependent of this concept or do EPSPs and IPSPs come into play at each section of the axon?arrow_forwardHelp me pleasearrow_forwarda) Describe the behavior of an unaffected neuron sitting at its membrane resting potentialstimulated by a suprathreshold stimulus.b) Now, add the effects of the consumption of the Fugu toxin and stimulate that neuron with a supra-threshold stimulus.- Describe (and/or diagram) the effect on the membrane potential by supra-thresholdstimulation under this condition.c. Using any ONE (1) of the following three (3) means we have used to interpret the resultingmembrane potential for a neuron, describe the effect of the Fugu toxin on a neuron:i) Goldman’s equationii) “Driving” toward Ex of most permeable ioniii) Movement/flow of charge + chargesarrow_forward
- When an impulse arrives at the synapse, the synaptic vesicles open and release neurotransmitters into the cleft within a thousandth of a second. Within another ten thousandth of a second, these molecules have diffused across the cleft and bound to receptor sites in the effector cell. In what two ways is transmission across a synapse terminated so that the neuron’s signal is concluded?arrow_forwardDescribe how following a threshold stimulus, a action potential is carried along an unmyelinated axon? How does this differ from an action potential passing through a mylenated axon?arrow_forward1) Draw a pseudo-unipolar neuron synapsing onto a dendrite on a multi-polar neuron. Label the cell body on both neurons and the synaptic cleft. 2) Draw a typical neuron and the relative ion concentrations (high or low) for Na+ and K+ inside and outside the cell. 3) If a cation channel suddenly opened at rest which direction would K+ move and why? Which way would Na+ ions move? 2arrow_forward
- If the duration of the absolute refractory period of a neuron is 1 millisecond(ms), how many action potentials are generated by a maximal stimulusin 1 second?arrow_forwardWhat is a graded potential? Where does a graded potential start in a neuron? Do graded potentials always result in an action potential? Are all graded potentials depolarizing? Why or why not? Where are action potentials started in a neuron and what is the threshold potential to do so in a neuron?arrow_forwardWhich functional segment of a neuron contains chemically gated channels? Which functional segments contain voltage-gated channels?arrow_forward
- Why are chemically- sensitive gated channels associated with receptors at the synapse and voltage-sensitive channels found along the axon?arrow_forwardHow is an action potential propagated along the axon towards the synaptic end bulb?arrow_forwardWhat effect would you expect an antagonist that targets the voltage sensing domain of perisynaptic calcium channels of an inhibitory interneuron have on the firing frequency of a finically active neuron that interneuron synapses onto? Explain in detailsarrow_forward
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