Indicate the Proper Sequence of Events at the Neuromuscular Junction $\mathrm { Na } ^ { + }$

question 50

Short Answer

Indicate the proper sequence of events at the neuromuscular junction by filling in the blank with the appropriate number from 2 through 7.Numbers 1 and 8 are already identified.
_____ACh is relensed fram the axan terminal by exacytosis.
_____An Epp takes place, primariy as a result af $\mathrm { Na } ^ { + }$ influx.
______Acetylcholinesterase inactivates ACh, terminating activity at the neuramuscular
$\underline {8} junction$
$\underline1$$\text { An action potential is propagated to an axon termunal of a motor neuron. }$

_______Channels that permit passage of $\mathrm { Na } ^ { + }$ and $\mathrm { K } ^ { + }$ are apened in the motar end plate.
_______ $\mathrm { Ca } ^ { 2 + }$ channels are opened in the axon terminal.
________Local current flow between the motor end plate and adjacent ________muscle-cell membrane initiates an action potential that spreads throughout the muscle fiber.
_______ACh binds with receptor sites an the motor end plate.

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