Biology > EXAM > Week 4 Bio lab Physio Ex Exercise 3 > Activity 3: Overview and Pre-lab Quiz for The Action Potential (All)

Week 4 Bio lab Physio Ex Exercise 3 > Activity 3: Overview and Pre-lab Quiz for The Action Potential: Threshold

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Part A A nerve is _______. ANSWER: Part B The region on the neuron where action potentials are generated is called the ______. ANSWER: another term for nerve fiber another term for a neuron a ... bundle of axons a cluster of cell bodies Week 4 lab https://session.masteringaandp.com/myct/assignmentPrintView?assignme... 1 of 20 3/20/2018, 6:06 PM Part C In this simulation, ___________________ will be used to stimulate the axon. ANSWER: Part D We describe the regeneration of the action potential down the membrane of the axon of the neuron as _______. ANSWER: PhysioEx Exercise 3 > Activity 3: Activity and Post-lab Quiz for The Action Potential: Threshold trigger zone depolarization zone stimulator zone dendrite light heat voltage chemicals hyperpolarization conduction or propagation conduction propagation Week 4 lab https://session.masteringaandp.com/myct/assignmentPrintView?assignme... 2 of 20 3/20/2018, 6:06 PM NOTE: The activity in this item uses Flash, and is therefore not screen-reader accessible, and may not work on a mobile device. If the browser you’re using no longer supports Flash, try a different browser and download the Flash plug-in for this content. Click on the link or the image below to launch Exercise 3 > Activity 3: The Action Potential: Threshold. Complete the Experiment and then answer the Post-lab Quiz questions to the right. Exercise 3 > Activity 3: The Action Potential: Threshold Part A The minimum voltage that is required to generate an action potential is called the _______. ANSWER: Part B Increasing the voltage resulted in which of the following? ANSWER: trigger voltage propagation voltage threshold voltage depolarization voltage an increase in the rate of propagation of the action potential no change to the action potential an increase in the size of the action potential a decrease in the rate of propagation of the action potential Week 4 lab https://session.masteringaandp.com/myct/assignmentPrintView?assignme... 3 of 20 3/20/2018, 6:06 PM Part C An axon that is more negative than the resting membrane potential is said to be _______. ANSWER: Part D If an increase in extracellular potassium hyperpolarizes a neuron, which of the following would be correct? ANSWER: PhysioEx Exercise 3 > Activity 1: Overview and Pre-lab Quiz for The Resting Membrane Potential NOTE: The activity in this item uses Flash, and is therefore not screen-reader accessible, and may not work on a mobile device. If the browser you’re using no longer supports Flash, try a different browser and download the Flash plug-in for this content. Click on the link or the image below to launch Exercise 3 > Activity 1: The Resting Membrane Potential. Read the overview and the introduction and then answer the Pre-lab Quiz questions to the right. Exercise 3 > Activity 1: The Resting Membrane Potential hyperpolarized depolarized at threshold graded It would increase the flow of sodium out of the cell. It would change the membrane potential to a more negative value. It would decrease the flow of sodium out of the cell. It would change the membrane potential to a less negative value. [Show More]

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