The class-book of anatomy : designed for schools, explanatory of the first principles of human mechanism, as the basis of physical education . is finally car-ried over the front of the globe, but perfectly transparent at thispoint. d. The integuments of the right side of the e. The optic nerve. / The four straight muscles, with the levator or raising muscleof the upper eye-lid, together with the superior oblique muscle em-bracing the optic nerve where it enters the orbit. g. The levator of the lid drawn aside. h. Levator occuli, or superior straight muscle, — to roll the ballupward i Ab
The class-book of anatomy : designed for schools, explanatory of the first principles of human mechanism, as the basis of physical education . is finally car-ried over the front of the globe, but perfectly transparent at thispoint. d. The integuments of the right side of the e. The optic nerve. / The four straight muscles, with the levator or raising muscleof the upper eye-lid, together with the superior oblique muscle em-bracing the optic nerve where it enters the orbit. g. The levator of the lid drawn aside. h. Levator occuli, or superior straight muscle, — to roll the ballupward i Abductor occuli, rolls the ball outward. ft. Adductor occuli, rolls it towards the nose. /. Depressor occuli, rolls the ball downward, towards the cheek. vi. The superior oblique muscle, passing through the loop at n. n. Called the trochlea, or pulley, hut, in fact, a simple loop. (>? Insertion of the superior oblique muscle in the eye-ball. p. The inferior oblique muscle, taking its rise from a bonetJ« ? ^ion of the tendon of the inferior oblique muscle inthe first coat of the ball. ANATOMICAL CLASS BOOK. 209 COATS OF THE Such is the mechanical arrangement of the differentcoats or coverings of the eye, answering in use, to thebrass tubes of a spy-glass, that one is fitted within theother, like a nest of boxes : they are three in number. Fig. 81. Explanation of Figure is a plan of the coats, or asthey are sometimes termed, tunics. Reference should be made to thisafter reading the text. The naturalfigure of the eye, in outline, is pre-served. a. The Sclerotic, or first, b. The Choroid, or fleecy tunic,c The Retina, or third and in-most tunic, which is an expansion ofthe optic nerve g — the certain seatof vision. d. The Cornea, or prominent, transparent circle, over which thelids close, in winking. e. The Crystaline lens, or little magnifying glass of the eye,about a quarter of an inch in diameter. f. Is the space filled by one of the fluids of t
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Keywords: ., bookcentury1800, bookdecade1830, booksubjectanatomy, bookyear1834
