structure of axon. in nervous system: Axon. The axon arises from the soma at a region called the axon hillock, or initial segment. This is the region where the plasma membrane generates nerve impulses; the axon conducts these impulses away from the soma or dendrites toward other neurons.
The type of land form that the Sierra Nevada and coastal ranges have is called a basin.
Two Mountain Ranges That Take Most of the West Coast's Moisture The Rocky Mountains and the Sierra Nevadas. A more appropriate response to the question might be the Cascades and the Sierra Nevadas.