Hooper, Robert [Editor]: The Anatomist's Vade-Mecum: Containing The Anatomy, Physiology, Morbid Appearances, &c. Of The Human Body ; The Art of making Anatomical Preparations, &c. To which are added Anatomical, Physiological, Medical, And Surgical Examinations For Students (London, 1811)

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torn, and parts of generation ; proceeds from the cavity of tke
pelvis, through the ischiatic notch, between the tuberosity of
the ischium and great trochanter, to the ham, where it is
called the popliteal nerve. In the ham it divides into
two branches:—

1. The peroneal, which descends on the fibula, and dis-
tributes many branches to the muscles of the leg and back
of the foot.

2. The tibial, which penetrates the gastrocnemii muscles
to the internal ankle, passes through a notch in the os calcis
to the sole of the foot, where it divides into an internal and
txterwl plantar nerve, which supply the muscles and aponeu-
rosis of the foot and the toes.

GREAT INTERCOSTAL NERVES.

The great intercostal, or sympathetic nerve, arises in the
cavity of the cranium, from the union of a branch of the sixth
with a recurrent twig of the second branch of tiie fifth pair.
It passes out of the cranium through the carotid canal, and
descends on the sides of the cervical, dorsal, and lumbar ver-
tebrae and sacrum, in which course it is joined by filaments
from all the spinal nerves, forming small ganglions at their
junctions.

In the neck it forms only three ganglions, which are called
cervical.

1. The uppermost is situated upon the second vertebra, be-
hind the pharynx ; it sends branches which concur in forming
the pulmonic and cardiac plexuses; and several other twigs,
which unite with the lingual nerve, the par vagum, and the
two other ganglions.

2. Tiie middle ganglion, which is situated on the fourth cer-
vical vertebra.