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.
The Sierra Nevada (/siËÉrÉ náµ»ËvÃ¦dÉ, -ËvÉËdÉ/, Spanish: [Ësjera neËÎ²aÃ°a], snowy range[6]) is a mountain range in the Western United States, between the Central Valley of California and the Basin and Range Province.