Which anatomical description is true of the parasympathetic division of the autonomic nervous system?

Its innervation originates mainly in the thoracic segment of the spinal cord.
Anatomical traits for the sympathetic division include thoracolumbar origins. Try to keep in mind some other traits.  allows ANS neurons to increase or decrease their activity, providing a range of control options. 

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides