All neurons have a cell body and one or more fibres. These fibres vary in length from microscopic to over 1 metre. There are two different kinds of nerve fibres: fibres that carry information towards the cell body, called dendrites, and fibres that carry information away from it, called axons.
The flute has also always been an essential part of Indian culture and mythology, and the cross flute believed by several accounts to originate in India as Indian literature from 1500 BCE has made vague references to the cross flute. Acoustics
Despite the implication of this commonly used name, the Irish flute is not an instrument indigenous to Ireland. The simple system, conical-bore flute is what people played before the advent of the modern, Boehm system, Western concert flute in the mid-19th century. Simple-system flutes are usually made of wood (cocus, grenadilla (African blackwood), rosewood, ebony, etc.