302 DETAILED SYNTHESIS. 



is chiefly packed with a firm fat, on and against which 

 the eye rests and turns very securely. 



FIG. 19a 



809. SlX DELICATE 



MUSCLES commence 

 near the inner point of 

 the socket. Four, call- 

 ed the straight (recti), 

 extend, one to each 

 side of the eye, to 

 which they are attached, a little back of the cornea. 

 The fifth (the superior oblique) extends to a loop in the 

 upper, inner, front part of the socket. The round ten- 

 don of the muscle, enveloped in a bursa, passes through 

 the loop, turns backward to one side, and downward 

 over the eye, to be attached to the outside of the back 

 part of it under the external straight muscle. The sixth, 

 or elevator muscle, extends above the eye and is inserted 

 in the upper eyelid. 



810. THE SEVENTH MUSCLE OF THE SOCKET, the sixth 

 that moves the eye (the inferior oblique), is attached, by 

 one extremity, to the lower inner, part of the socket near 

 the nose, and extending outward, backward, and upward 

 under the eye, is attached to it near the same point with 

 the superior oblique. 



811. THE USE OF THE OBLIQUE MUSCLES is to draw 

 the eye forward and partially turn it on its axis. 



812. THE USE OF THE STRAIGHT MUSCLES is to turn 

 the eye, as their direction signifies, and by excessive con- 

 traction to roll the eye. 



The Apparatus for Moistening the Eye. 



813. THE MEANS FOR MOISTENING THE EYE may well 

 be called an apparatus, since several different organs are 



809. What said of ? 810. Describe . 811. What is ? 812. What is 

 813. What is ? 



