Answer:
b. outward; inward
Step-by-step explanation:
The motor neuron is characterized by the distribution in the anterior region of the medulla and brainstem, playing a role of integrating impulses of origin of the central nervous system and muscle activity, so we can say that it is extremely important for the outer part of the body. In order to establish a particular function, an improved structure of high metabolic activity, consisting of a cell body, extensive axon with frequent dendritic branches supported by a cytoskeleton and terminal portion integrated with the neuromuscular junction and skeletal muscle, is required.
Sensory neurons, in turn, are responsible for receiving stimuli received from outside the body and produced internally and transmit them to the Central Nervous System (CNS). In that case they are very important for the inner regions of the body.