Here's why:

* Structure: Dendrites are the branching extensions of a neuron that receive signals from other neurons. Axons are long, slender extensions that transmit signals away from the neuron.

* Function: Dendrites are like antennas, collecting information, while axons are like wires, carrying signals.

* Support: The support for the axon comes from a structure called the myelin sheath. This fatty covering insulates the axon and helps speed up signal transmission.

While dendrites and axons work together in the process of neuronal communication, they have distinct roles and structures. Dendrites do not provide internal support to the axon.