The nerve impulse travels down the axon opening voltage-regulated gates allowing _______(1)________ to enter the synaptic knob.

The nerve impulse travels down the axon opening voltage-regulated gates allowing _______(1)________ to enter the synaptic knob. ____________(2)__________ is released from the synaptic knob by exocytosis and diffuses across the _________(3)________________. Binding of the neurotransmitter to the _____(4)___ iniates an action potential down the _______(5)______(muscle cell membrane).

Question 32 options:

sarcolemma

Calcium ions

synaptic cleft

receptor

ACh