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.
Mountains and Basins. Landforms. Major Landforms in the mountains and basins region include Guadalupe Mountains, Davis Mountains, ïRio Grande, Big Bend National Park, El Captain ï. Major Cities. Major cities in the mountains and basins region include the following cities El Paso, Fort Davis, and Alpine. Economic Activities.