When considering an action potential which of the following are true i) occurs when the local potential reaches - 45mVii) disobeys the all-or-none ruleiii) is propagated with differing magnitude from one point to anotheriv) is characterized by a series of depolarizations/repolarizations along the membrane.Question 14Answera.Only (ii) and (iv) are correct.b.Only (i) and (iii) are correct.c.Only (iv) is correct.d.All the above statements are correct.e.Only (i), (ii), and (iii) are correct.

109. One reason that action potentials are all-or-none is that a. they are always the same size in a given neuron. b. axonal membranes do not allow partial electrical responses to electrical stimuli. c. they must travel long distances without decrement. *d. once the membrane potential is past threshold, the influx of Na+ keeps driving it more positive until the maximum number of Na+ channels is

Use the terms to correctly complete the sentences regarding the "all-or-none" principle.The principle refers to the creation of an potential along a muscle cell membrane.It states that an action potential will not be created until a critical level, or , is met.This level is the amount of that must occur along the plasma membrane prior to an action potential being created.Once this level is reached, changes in membrane occur, which lead to the creation of an action potential.The part refers to the identical action potentials created throughout a cell’s membrane; the indicates that an action potential is not generated if the threshold is not met.

108. The all-or-none principle of nerve action states that a. the entire length of the nerve conducts an action potential or no part does. *b. an action potential always reaches its maximum strength or it doesn't appear at all. c. all available ions contribute to the rise and fall of the action potential or none do. d. all synapses on a neuron must be active in order for them to excite it.

Each action potential Blank______.Multiple choice question.begins in the synaptic terminal and spreads up the axon to the axon hillockspreads across the entire surface of the membrane so that the entire cell is depolarized at one timeaffects only a small area of the plasma membrane of the cell at a timebuilds upon the previous action potential to create a larger potential change

All action potentials are Blank______.Multiple choice question.the same regardless of strength of stimulusdifferent depending on strength of stimulus