( ( A synapse ) ( ( is ( ( a connection ) ( between ( ( ( a neuron ) and ) ( ( another neuron ) ( -LRB- ( or ( ( muscle cell ) -RRB- ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN synapse)) (VP (VBZ is) (NP (NP (DT a) (NN connection)) (PP (IN between) (NP (NP (DT a) (NN neuron)) (CC and) (NP (NP (DT another) (NN neuron)) (PRN (-LRB- -LRB-) (CC or) (NP (NP (NN muscle)) (NP (NN cell))) (-RRB- -RRB-))))))) (. .)))
A synapse is a connection between a neuron and another neuron (or muscle cell).
(ROOT (S (NP (NNP Synapse)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT a) (NN connection)) (PP (IN between) (NP (NP (DT a) (NN neuron)) (CC and) (NP (PRP$ its) (NN target) (NN cell)))))))) (. .)))