í '
' ' i. -
E X P L A N A T I O N OF THE TABLES. iAi
T A B L E XXI.
J ^ E P R E S E N T S different parts of the human great intcrcoftal
or fympathetic nerve.
• l i l i
FIG. I. Reprefents, of the natural fize, the uppermoft cervical ganglion
of the great fympathetic nerve.
FIG. 11. Reprefents the fame ganglion, cut longitudinally, and examined
with a magnifying glafs which increafes the diameter about fi.i times.
t 'r^.
Bundles of nervous fibres running lengthwife, joining, and again feparatingj
can, for certain, be diftinguilhed within it.
FIG. III. Shows, of the natural fizc, one of the thoracic ganglia cut
longitudinally.
A The ganglion. B One of the branches by which it is conneaed to the
proper intercoftal nerve.
FIG. IV. ShoM's the fame ganglion magnified.
I n every part of it nervous threads could be traced, with great certainty,
as they every where had thofe regular rugae or folds proper to the
nerves.
FIG. V. Shows, of the natural fize, the ganglia of the fplanchnvc branches
of the fyinpatiietic nerves, and their joining witli each other, and
witi) the eighth pair of nerves, on the fore part of the aorta, where
N n they
P