BIOLOGY:CONCEPTS+INVEST.-ACCESS >I<
4th Edition
ISBN: 9781260505498
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 26, Problem 6WIO
Write a nonbiological analogy for resting potential and for depolarization, other than those mentioned in the chapter.
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Based on the graph, how soon could another action potential be easily initiated (at the end of the relative refractory period) after the first stimulus? (Base your answer to this question on the graph below depicting an action potential.)
less than 0.5 msec
1 msec
2 msec
3 msec
4 msec
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?
Discuss the importance of the sodium-potassium pump in the establishment of resting potentials and the initiation of action potentials in neurons.
Chapter 26 Solutions
BIOLOGY:CONCEPTS+INVEST.-ACCESS >I<
Ch. 26.1 - Prob. 1MCCh. 26.1 - Prob. 2MCCh. 26.1 - Prob. 3MCCh. 26.2 - Prob. 1MCCh. 26.2 - Where is the myelin sheath located?Ch. 26.2 - Prob. 3MCCh. 26.2 - What are the functions of each of the three...Ch. 26.3 - Describe the forces that maintain the distribution...Ch. 26.3 - Prob. 2MCCh. 26.3 - Prob. 3MC
Ch. 26.3 - Prob. 4MCCh. 26.3 - What prevents action potentials from spreading in...Ch. 26.3 - Prob. 6MCCh. 26.3 - How do myelin and the nodes of Ranvier speed...Ch. 26.4 - Describe the structure of a synapse.Ch. 26.4 - Prob. 2MCCh. 26.4 - Prob. 3MCCh. 26.4 - Prob. 4MCCh. 26.5 - Prob. 1MCCh. 26.5 - Prob. 2MCCh. 26.5 - Prob. 3MCCh. 26.5 - Prob. 4MCCh. 26.6 - Prob. 1MCCh. 26.6 - Prob. 2MCCh. 26.6 - Prob. 3MCCh. 26.6 - List some structures that protect the central...Ch. 26.6 - Prob. 5MCCh. 26.7 - The researchers conducted a behavioral experiment...Ch. 26.7 - Prob. 2MCCh. 26 - Some cells of the central nervous system are...Ch. 26 - Prob. 2MCQCh. 26 - Prob. 3MCQCh. 26 - What event triggers an action potential? a....Ch. 26 - Prob. 5MCQCh. 26 - Prob. 6MCQCh. 26 - Prob. 7MCQCh. 26 - Prob. 8MCQCh. 26 - Damage to the surface tissue of the spinal cord...Ch. 26 - Prob. 10MCQCh. 26 - Describe some invertebrate nervous systems. Why do...Ch. 26 - Prob. 2WIOCh. 26 - Prob. 3WIOCh. 26 - Prob. 4WIOCh. 26 - What is the connection between the threshold...Ch. 26 - Write a nonbiological analogy for resting...Ch. 26 - Prob. 7WIOCh. 26 - Sketch a synapse: label the axon and synaptic...Ch. 26 - Describe the events that occur at a synapse when a...Ch. 26 - Prob. 10WIOCh. 26 - Prob. 11WIOCh. 26 - Cerebral palsy is a nervous system disorder that...Ch. 26 - Traumatic brain injury can occur when a person...Ch. 26 - Prob. 14WIOCh. 26 - Prob. 15WIOCh. 26 - Prob. 16WIOCh. 26 - Prob. 17WIOCh. 26 - Prob. 1PITCh. 26 - Prob. 2PITCh. 26 - Prob. 3PITCh. 26 - PULL IT TOGETHER 4. Acid the somatic, autonomic,...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following voltages would most likely be measured during the relative refractory period? +30 mV 0 mV -45 mV -80 mvarrow_forwardThe output from the hypothalamus and the other brain areas to the effectors is via?arrow_forwardExplain the all-or-none law of action potentials, and describe the effect of increased stimulus strength on action potential production. How do the refractory periods affect thefrequency of action potential production?arrow_forward
- Define refractory period, and explain the difference between the absolute refractory period and relative refractory period associated with transmitting an action potential.arrow_forwardDescribe depolarizing of graded potential? Explain with an example?arrow_forwardIndicate which gate is responsible for halting the rising phase of the action potential. 1- Na+ inactivation gate opens 2- Sodium activation gate closes 3-Na+ inactivation gate closes 4- K+ gate closes 5-Na+ activation gate opensarrow_forward
- Briefly explain how a neuron at resting potential becomes activated.arrow_forwardanatomy and psychology Choise What guarantees that there are unidirectional action potential? A. threshold B. depolarization refractory period C. absolute refractory period D. relative refractory periodarrow_forwardRefer to the figure below to explain the mediation of action potentials by neurons using sodium and potassium channels at each of the six timepoints indicated.arrow_forward
- explain the simplified version of the synaptic process resulting in long-term potentiationand explain the roles of AMPA and NMDA receptors; glutamate; sodium, calcium, and magnesium ions in strengthening a synapse.arrow_forwardHow are Depolarization and graded potential caused?arrow_forwardMC: Which of the following changes to an action potential indicates a larger stimulus? Increased frequency Increased wavelength Increased amplitude Increased speedarrow_forward
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