The diagram given below is a representation of a phenomenon pertaining to the nervous system. Study the diagram and answer the following questions:

(i) Name the phenomenon that is being depicted.
(ii) Give the technical term for the point of contact between the two nerve cells.
(iii) Name the parts A, B, C and D.
(iv) Write the functions of parts E and F.
(v) How does the arrangement of neurons in the spinal cord differ from that of the brain.

Explanation

Pathway of reflex action or reflex arc