Final answer:
The term for a neuron that is not a sensory or motor neuron is an interneuron. These multipolar neurons connect sensory and motor neurons within the CNS and play a key role in neural communication.
Step-by-step explanation:
The term for any neuron that is not a sensory or motor neuron, usually a CNS neuron whose axon does not leave the structure in which it resides is an interneuron. Interneurons (also known as connector neurons or association neurons) are crucial for communication within the central nervous system (CNS), connecting sensory neurons to motor neurons. The primary function of these multipolar neurons is to integrate sensory inputs and motor outputs. They do not have long axons that extend outside the CNS, unlike motor and sensory neurons that connect to the peripheral nervous system (PNS).
There are various types of neurons, such as anaxonic neurons, which are small and difficult to distinguish at standard histology magnifications. However, like other multipolar neurons, they have multiple processes and can function differently depending on circumstances. Primarily, neurons are categorized based on their function and connections, such as unipolar sensory neurons or the Purkinje cells found in the cerebellum of the brain.