, although functional information
(especially) would benefit from more studies. Cranial autonomic
pathways have been demonstrated in cranial nerves III, VII, IX and X. It
is perhaps noteworthy, that a description of sympathetic chains in
snakes is wanting (for discussion, see Gibbins, 1994).
A general picture of the reptilian autonomic nervous system is
summarised in Fig. 7, and a good review is that of Berger and
Burnstock (1979).