374 GLOSSARY 



Chlo'ride: a compound of the element chlorine with some other ele 



ment, as chloride of sodium (common salt). 

 Cho'roid: the second of the coats of the eye. It contains a dark 



pigment. 

 Chyle (Gr. chulos, juice) : a milky fluid containing partly digested food, 



and especially the fatty matter of the food in a state of emulsion. 

 Chyme (Gr. chumos, juice) : the partly digested food as it passes from 



the stomach into the small intestine. 

 Cil'i-a (Lat. cilium, eyelid) : small hairlike appendages lining certain 



organs, as the air passages. 

 Cil'ia-ry muscles : small muscles which help to adjust the eye for 



seeing at different distances. 

 Ciliary processes: radiating folds of the choroid of the eye at the 



outer edge of the iris. 

 Cir-cum-val'late pa-pil'lae (Lat. circum, around, and vallum, wall) : 



a form of papillae found at the back of the tongue and containing 



some of the taste end organs. 



Clav'i-cle (Lat. clavicula, a little key) : the collar bone. 

 Co-ag-u-la'tion (Lat. coagulatio} : the change of a liquid to a thickened, 



curdlike state because of some chemical change. 



Coc'cyx (Gr. kokkux, cuckoo) : the end of the vertebral column be- 

 yond the sacrum. 



Cochle-a (Lat., a snail) : a spiral bony tube of the internal ear. 

 Coe'li-ac axis (Gr. koilos, hollow, and Lat. axis, axle, pole) : a short, 



thick branch of the abdominal aorta given off just below the 



diaphragm. 

 Colon (Lat. and Gr.) : the middle and longest division of the large 



intestine. 



Color blindness : inability to distinguish colors. 



Co'ma (Gr., lethargy) : deep stupor from which it is difficult or im- 

 possible to rouse a person. 

 Con-duc-tiv'i-ty (Lat. conducere, to bring together) : the power of 



passing on a stimulus from one point to others. 

 Con-ges'tion (Lat. con, together, and gerere, to bring) : overfullness 



of the blood vessels of a part of the body. 

 Con-junc-ti'va (Lat. conjunctivas, connective) : the mucous membrane 



covering the external surface of the eyeball and forming the 



lining of the lids. 

 Con-nect'ive tissues : tissues devoted to the support and connection 



of the muscles and nerves. 



