用synaptic knobs造句子，“synaptic knobs”造句

"A typical neuron consists of dendrites (fibres that receive stimuli and conduct them inward), a cell body (a nucleated body that receives input from dendrites), and an axon (a fibre that relays the nerve impulse from the cell body outward to its terminals, the synaptic knobs)."

In general, action potentials that reach the synaptic knobs cause a neurotransmitter to be released into the synaptic cleft.