A branch of the Group III afferent synapse an excitatory interneuron, which extends its axon across the midline into the contralateral spinal cord. At that location, the interneuron excites the alpha motor neurons that innervate the extensor muscles of the opposite leg.
The name of the land between two rivers is called Doab. It has 3 districts called Upper or Meerut, Middle or Agra, and Lower or Allahabad Doab.
Jordan is named after the Jordan River, where Jesus is said to have been baptised. The origin of the river's name is debated, but the most common explanation is that it derives from the word yarad (the descender, Yarden is the Hebrew name for the river), found in Hebrew, Aramaic, and other Semitic languages.