'52 the Anatomy of a YiOlk&E. Chap. V. 



Fig. 4. Reprefents the Eye taken out of the Head. 

 iK.The Optick Nerve cut off, 

 B. The Origin of the Mujcles, 

 CC. Their feveral Ter?riiriations into the Coats of the Eye, 



D. The common Coat of the Eye^ called the Adnata, or Ccm- 

 junftiva. 



E. The Cornea, or homey Coat. 



r. The Pupilla, or Apple of the Eye. ^ 



C H A P. V. 



Of the Mufcks. 



§ I. Of the Mhfcles cfthe Eye-lids and Eye. 



Three Pair of HP H E Eyelids have three pair of Muf- 

 Mufcles belonging A ^,|gg^ ^^^ p^jj. ^q ^^^^ ihtmy and two 

 to the Eye-hds. ^o {hut them. 



That which openeth the Eyelids is called 

 Recfus or Aperiens^ from its Office. It fpringeth with a 

 llender, but fleftiy Beginning, from the fame Place as the 

 Elevator oi the Eye doth, to wit, at the Hole through which 

 the Optick Nerve palTes into the Orbit, and holds the fame 

 Courfe with it, till at laft parting from it with a pretty broad 

 but thin Tendon, it is inferted into tlie Griftlc at the E(jge 

 of the upper Eyelid, where it ferves to open the Eyelid by 

 lifting it up. 



The other tv/o Mufcles of the Eyelids are call'd Shutters^ 

 and oihcrmk /emicircular, becaufe each of them runs the 

 Length of the Eyelid ; they are feated between the Mem- 

 hrana carnoja^ and the inner fmooth Skin that lines the Eye- 

 lids. That which draweth down the upper Lid, is larger 

 than the Mufcle which moveih the lower Lid to (hut it. 



The frontal Mufcles are alfo thought to contribute fome- 

 thing to the Motion of the Eyelids, as they arife from the 

 Skull, near the coronal Suture, and are inferted in the Eye- 

 brow.s ; for by their Adion tliey contradt the Skin of the 

 Forehead, by which Means the upper Eyelid is fomctimes 

 drawn a little upward. 



Vye Eyes ha-je ^^^ ^V^^ ^^^^ ^^^'^" P^'"^ ^^ Mufcles, of 

 Secjen pair of ^'^^ich four are ftreight, two oblique or flant- 

 Mufcles belong- ing? and the other pair circular, or round. 

 ing i9 them. The ftreight ferve to move the Eyes up- 

 wards 



