Hooper, Robert [Hrsg.]: 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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foramen of the ethmoid bone, to be distributed on the pitui-
tary in etn tea lie of the nose.

Use. They form the organ of smelling cn the pituitary
membrane of the nose.

A want of energy in these nerves gives rise to anosmia,
or want of smell, which is mostly symptomatic.

OPTIC NERVES.

The secand pair, or optic nerves, arise from the thalami
nervorum opticorum, turn round the Crura cerebri, becoming
thinner, decussate each other, or are united together, then
pass through the foramina optica, and perforate the baib tf
the eye, and in it form the retina.

The optic nerves being the organs of sight, most of their
diseases produce blindness, A diseased appearance,
consisting of a change, of colour into a brown, and a
pulpiness, have been sometimes noticed about the
junction of these nerves.

NEEVI OCULOKUM MOTORII.

The third pair, ov ociilorum motorii, arise from the crura
cerebri, near the pons Varolii, pass forwards towards the top
of the p'etHe-iis portion of the temporal bone, where they per-
forate the dura mater, and proceed to the orbital fissure, to
be inserted into the muscles of the bulb of the eye, which
they move. There is sometimes a branch given off from this
nerve to join a branch of the fifth pair in the orbit, and form
a ganglion, which is termed the lenticular or ophthalmic
gam;lion, from whence small branches proceed to the cho-
roid membrane of the eye, the iris, uvea, and tunica sclero-
tica.-