Mouse hippocampal neuron with dendrites (branched projections emanating from the neuronal cell body) and dendritic spines (small membranous protrusion emerging from the neuron’s dendrites) (in red).

By far the most common types of synapses are those between an axon and a dendrite (axodendritic synapses) and those between an axon and the cell body of a neuron (axosomatic synapses).

By far the most common types of synapses are those between an axon and a dendrite (axodendritic synapses) and those between an axon and the cell body of a neuron (axosomatic synapses).

In particular, they noted that the outgrowth of neurites—projections from a neuronal cell body that connect it to other neurons—was constrained by activation of muscarinic acetylcholine receptors.

In particular, they noted that the outgrowth of neurites — projections from a neuronal cell body that connect it to other neurons — was constrained by activation of muscarinic acetylcholine receptors.

In particular, they noted that the outgrowth of neurites -- projections from a neuronal cell body that connect it to other neurons -- was constrained by activation of muscarinic acetylcholine receptors.