Question

What do the central body of an animal cell do?

Answer 1

do you mean the nucleus? or are you still talking about nerve cells?

Answer 2

The nucleus of an animal cell contains the DNA, the "blueprints" for all the protein substances that the cell contains. It is enveloped in two layers of phospholipids and usually only RNA, not DNA, exits the nucleus after the transcription process in which DNA, which is double stranded, is read and copied into a single stranded RNA molecule, containing information in the form of nucleotides that will be "read" by the ribosome in order to make proteins (which are formed by amino acids.)