Complete each statement by using the appropriate word or phr

Complete each statement by using the appropriate word or phrase from the list. Neurotransmitter release from the pre-synaptic membrane is ceased and existing ACh in the cleft is broken down by _____. With a _____ the ligand-regulated channels begin closing as they release their bound ACh. Without continued sodium influx into the cell through the ligand-regulated channels, the constant _____ causes the membrane potential to return back to RMP. As electrical charge is re-established back to -70 mV, the _____ return the ions to their initial position with sodium more highly concentrated in the ECF.

Solution

1, acetylcholine esterase

2.voltage regulated sodium

3. voltage regulated potassium

4.leak of sodium to the ICF