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.
A mountain range stretching from northeastern California across Oregon and Washington. Major peaks included Mt. Hood, Mt. Ranier, and Mt. St. Helens. Coast Range: Mountains running along the Pacific Ocean coastlines of California, Oregon, Washington. They also extend along the western border of British Columbia, Canada, and the southern edge of Alaska, all the way to Kenai Peninsula and Kodiak Island.