Dendrites were the projections of neurons that acted to conduct the electrochemical stimulation received from other neural cells to the cell body.
The transporter used by a race of alien abductors had the ability to replicate living matter, including the dendritic connections of the brain. (TNG: "Allegiance")
In 2371, the Komar drained Chakotay's neural energy from his every dendrite and axon down to the synapses, leaving him brain-dead. (VOY: "Cathexis")