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THE NERVOUS SYSTEM. 285
Flint claims "this anatomical point as of importance in view of some
of the remote effects which follow division of the fifth nerve through
the ganglion in living animals." A few small branches emanate from
the ganglion, and are distributed to the dura mater and the tentorium.
From the anterior or concave margin of this ganglion the three large
divisions of the fifth nerve commence. It is from this that the nerve
receives the name of trifacial. These divisions again divide and sub-
divide as they pass forward to their terminations (Fig. 144).
Fig. 144.
A Diagram of the Distribution of the Fifth Nerve (Eanney) : 1, the crus cerebri; '>, the sensory root
of the nerve; 3, the motor root of the nerve; 4, the (iasseriaii ganglion, upon the sensory root
only ; 5, the ophthalmic nerve passing through the sphenoidal fissure; fi, tlie superior maxillary
nerve passing through the foramen rolundum to enter the sphenomaxillary fossa; 7, the inferior
maxillary nerve passing through the foramen ovale in company with the motor root; 8, a fila-
ment sent backward from the ophthalmic nerve to the tentorium cerebelli ; 'J, the frontal nerve
10, the lachrymal nerve ; 11, the nasal nerve ; 12, the supraorbital nerve passing through the fora-
men of the same name; 13, the supratrochlear nerve; 14, the long ciliary nerves to the iris; 15,
the lenticular or ciliary ganglion ; 16, the temporo-malar nerve, dividing into temporal and malar
branches; 17, the spheno-palatine nerve, going to Meckel's ganglion; 18, the po>terior dent:il
nerves; 19, the anterior dental nerves, given off in the antrum; 20, the nasopalatine nerve,
escaping at the anterior palatine foramen after pa.ssing through the antrum; 21, the anterior
palatine nerve after escaping from the posterior palatine foramen ; 22, the deep temporal nerve;
23, the masseteric branch ; 24, the buccal branch, which also often supplies the external jiterygoid
musL-le; 25, the pterygoid branch, going chiefly to the internal pterygoid muscle; 20, the poste-
rior palatine nerves after leaving the posterior palatine foramen, going to the muscles of soft
palate; 27, the auriculo-temporal nerve, splitting, and thus embracing the middle meningeal
artery; 28, the gustatory or lingual nerve, distributed to the anterior two-thirds of tongue; 29,
t'lie inferior dental nerve, passing through the inferior dental canal beneath the teetli of the
lower jaw ; 30, the mylo-hyoid nerve ; 31, the chorda tympani nerve, joining the gustatory nerve,
and possibly-bringing to "it the perception of taste: -32, the middle meningeal artery; 33, the
fibres going to the cavernous plexuses of the sympathetic system; 34, the Vidian mrve, going
from Meckel's ganglion to the Vidian canal.—Ganglion of the Fifth Nerv?; L, the lenticular
ganglion, sending fibres to the iris and ciliary muSTcle; C, the Ga.sserian ganglion; O, the otic
ganglion, lying on the inferior maxillary nerve below the foramen ovale; E, the submaxillary
ganglion, connected with the gustatory and chorda tympani nerves; jM, Meckel's ganglion, lying
in the spheno-maxillary fossa.
" By tracing the various distributions of this nerve it will be seen that
it gives motor power to the muscles of mastication—viz. the temporal,
masseter, and pterygoids also the anterior belly of the digastric and
;
mylo-hyoid muscles, and tensor palato " (palato-Eustachian) " and tensor
THE NERVOUS SYSTEM. 285
Flint claims "this anatomical point as of importance in view of some
of the remote effects which follow division of the fifth nerve through
the ganglion in living animals." A few small branches emanate from
the ganglion, and are distributed to the dura mater and the tentorium.
From the anterior or concave margin of this ganglion the three large
divisions of the fifth nerve commence. It is from this that the nerve
receives the name of trifacial. These divisions again divide and sub-
divide as they pass forward to their terminations (Fig. 144).
Fig. 144.
A Diagram of the Distribution of the Fifth Nerve (Eanney) : 1, the crus cerebri; '>, the sensory root
of the nerve; 3, the motor root of the nerve; 4, the (iasseriaii ganglion, upon the sensory root
only ; 5, the ophthalmic nerve passing through the sphenoidal fissure; fi, tlie superior maxillary
nerve passing through the foramen rolundum to enter the sphenomaxillary fossa; 7, the inferior
maxillary nerve passing through the foramen ovale in company with the motor root; 8, a fila-
ment sent backward from the ophthalmic nerve to the tentorium cerebelli ; 'J, the frontal nerve
10, the lachrymal nerve ; 11, the nasal nerve ; 12, the supraorbital nerve passing through the fora-
men of the same name; 13, the supratrochlear nerve; 14, the long ciliary nerves to the iris; 15,
the lenticular or ciliary ganglion ; 16, the temporo-malar nerve, dividing into temporal and malar
branches; 17, the spheno-palatine nerve, going to Meckel's ganglion; 18, the po>terior dent:il
nerves; 19, the anterior dental nerves, given off in the antrum; 20, the nasopalatine nerve,
escaping at the anterior palatine foramen after pa.ssing through the antrum; 21, the anterior
palatine nerve after escaping from the posterior palatine foramen ; 22, the deep temporal nerve;
23, the masseteric branch ; 24, the buccal branch, which also often supplies the external jiterygoid
musL-le; 25, the pterygoid branch, going chiefly to the internal pterygoid muscle; 20, the poste-
rior palatine nerves after leaving the posterior palatine foramen, going to the muscles of soft
palate; 27, the auriculo-temporal nerve, splitting, and thus embracing the middle meningeal
artery; 28, the gustatory or lingual nerve, distributed to the anterior two-thirds of tongue; 29,
t'lie inferior dental nerve, passing through the inferior dental canal beneath the teetli of the
lower jaw ; 30, the mylo-hyoid nerve ; 31, the chorda tympani nerve, joining the gustatory nerve,
and possibly-bringing to "it the perception of taste: -32, the middle meningeal artery; 33, the
fibres going to the cavernous plexuses of the sympathetic system; 34, the Vidian mrve, going
from Meckel's ganglion to the Vidian canal.—Ganglion of the Fifth Nerv?; L, the lenticular
ganglion, sending fibres to the iris and ciliary muSTcle; C, the Ga.sserian ganglion; O, the otic
ganglion, lying on the inferior maxillary nerve below the foramen ovale; E, the submaxillary
ganglion, connected with the gustatory and chorda tympani nerves; jM, Meckel's ganglion, lying
in the spheno-maxillary fossa.
" By tracing the various distributions of this nerve it will be seen that
it gives motor power to the muscles of mastication—viz. the temporal,
masseter, and pterygoids also the anterior belly of the digastric and
;
mylo-hyoid muscles, and tensor palato " (palato-Eustachian) " and tensor
