. Human physiology : designed for colleges and the higher classes in schools, and for general reading. the eyelids. It covers the cornea, passes back a little way on the white of the eye,and then turns forward to line the eyelid. It is the seat of themost common form of inflammation in the eye. It is very vas-cular, as is shown by its distended vessels when it is is exceedingly sensitive, and hence the great pain which isoccasioned by any thing, even the smallest mote, that gets intothe eye. The object of having it so sensitive I have spokenof in the Chapter on the Nervous System,
. Human physiology : designed for colleges and the higher classes in schools, and for general reading. the eyelids. It covers the cornea, passes back a little way on the white of the eye,and then turns forward to line the eyelid. It is the seat of themost common form of inflammation in the eye. It is very vas-cular, as is shown by its distended vessels when it is is exceedingly sensitive, and hence the great pain which isoccasioned by any thing, even the smallest mote, that gets intothe eye. The object of having it so sensitive I have spokenof in the Chapter on the Nervous System, § 242. 438. At 6 in Fig. 160, is one of the ciliary processes, as theyare called, from their resemblance to the eyelashes. There is acircular row of them, numbering from sixty to eighty, so ar-ranged as to resemble the disk of a radiated flower. In they are represented as they appear in looking at themfrom behind, the back part of the eye being removed. At 1is the divided edge of the three coats; 2, the pupil; 3, the iris;4, the ciliary processes. At 5 is the anterior edge of the retina,. 292 HUMAN PHYSIOLOGY. Object of the apparatus to form images of objects on the retina. FIG. 161.
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