Together, the nerves make up the peripheral nervous system, as distinguished from the central nervous system, which consists of the brain and spinal cord. There are 12 pairs of cranial nerves, which carry messages to and from the brain. Spinal nerves arise from the spinal cord and pass out between the vertebrae.
For Kids. What is a landform? The usual definition is that a landform is a natural feature of the solid surface of the earth. Using that definition, the four major landforms are mountains, hills, plateaus, and plains. But that's not the whole picture. Because oceans, lakes, rivers, and ponds are full of a variety of landforms, and some bodies of water are referred to as landforms themselves if they occurred naturally, because they can be found on the solid surface of the earth.
A landform is a natural feature of the Earth's surface. Landforms together make up a given terrain, and their arrangement on the landscape or the study of same is known as topography.lementary landforms (segments, facets, relief units) are the smallest homogeneous divisions of the land surface, at the given scale/resolution. These are areas with relatively homogeneous morphometric properties, bounded by lines of discontinuity.