Dendrites play a crucial role in the function of nerve cells (neurons) by helping them receive messages from the axon of another neuron. Specifically, dendrites are branching projections that extend from the neuron's cell body and are specialized for detecting and receiving neurotransmitters released by neighboring neurons at synapses. This allows neurons to transmit signals and communicate with each other, facilitating the transmission of information throughout the nervous system.
So, the correct response regarding how dendrites help nerve cells is: They help the neuron receive messages from the axon of another neuron.