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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near tlie optic foramen; it becomes fleshy as it passes the
eyeballs, and ends in the eyelid by a broad expansion of mus-
cular fibres, which finally terminate in a short flat tendon.
It opens the eye by raising the upper eyelid.

t

MUSCLES OF THE EYEBALL.

The eyeball is completely surrounded by muscles, which
move it in every direction. They arise from the very bottom
of the orbit, around the optic foramen, and are implanted in-
to the upper, under, and lateral surfaces of the sclerotic
coat of the eye ; and the expansions of their colourless tendons
form the tunica adnata, or white of the eye: these mus-
cles are termed recti.

Rectus superior.—Attollens oculi. Levator oculi. Super?
bus.—This muscle lifts the eye directly upwards, and is ex-
pressive of pride and haughtiness.

Rectus infertor.—Deprimens oculi. llamilu.—This is
directly opposite to the former muscle, and is expressive of
modesty and submission.

Rectus internus.— Adduccns oculi. Bibitorius.-— This
moves the eye towards the nose-.

Rectus externus.—Abductor oculi. Indignabundus.—Thi»
muscle turns the eye outwards.

When the recti muscles all act in succession, they roll the
eye; but if they act all at once, the eye is immoveable.

Besides these, there are two whose action turns the eye ob-
liquely. ,

.tXuo/tObliquus -mnEinxM.—Longissimus oculi Trochlearis.—
This tirisss with the former, from the bottom of the orbit, by
a slender tendon, passes the upper part of the eyeball ficshy,
then forms a smooth round tendon, which passes tbroiii.li a