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
The date and origin of the first device considered a musical instrument is disputed. The oldest object that some scholars refer to as a musical instrument, a simple flute, dates back as far as 67,000 years. Some consensus dates early flutes to about 37,000 years ago.