GLOSSARY 439 



Connective tissue, the stringlike cells scattered through the whole 



body to keep the other cells of the body in place. 

 Conservation of energy, the law that no force is destroyed, but can be 



recovered as heat, electricity, motion, or in other forms. 

 Contagious disease (kon-ta'jus) (Lat. contagio, a touch), an infectious 



disease which can be transmitted through the air. 

 Con-trac'tion (Lat. con, together, and trahere, to draw), the shortening 



and thickening of a muscle to produce movement in a part of the 



body. 



Cook (Lat. coqiiere), to prepare food by the use of heat. 

 Cor'ne-a (Lat. corneus, horny), the round, bulging window in the front 



of the eyeball through which light enters the eye. 

 Cor'pus-cle (Lat. corpusculum, a little body), one of the cells which float 



in the plasma of the blood. 

 Cra'ni-al (Gr. kranion, skull), pertaining to the contents of the skull 



or brain. 

 Cricoid cartilage (Ikrfkoid} (Gr. krikos, a ring, and eidos, form), the 



ring which forms the lower part of the larynx. 

 Cud, the food which most cloven-hoofed animals bring up from the 



stomach to chew the second time. 

 Cu'ti-cle (Lat. cuiicula, little skin), the outer and insensitive layer of 



skin. The epidermis. 

 Cu'tis (Lat. cutis, skin). A more common name is the derma. 



Deglu-ti'tion (Lat. de, from, andgtutire, to swallow), swallowing. 



De-lir'i-um (Lat. delirart, to rave), a state of mind in which judgment 

 and reason are disordered and illusions of the senses are present. 

 It is usually caused by fevers. 



Delirium tre'mens, a form of delirium which occurs in drunkards. It 

 causes the sufferer to struggle violently to escape the torments of his 

 imagination. 



Der'ma (Gr. derma, skin), the true skin, or the part beneath its insen- 

 sitive covering. 



Di'a-phragm (Gr. dia, through, and phragnunai, to fence), the muscu- 

 lar partition extending across the cavity of the body and dividing 

 the chest from the abdomen. It is the main muscle of breathing. 



Diastole (di-as'to-le) (Gr. dia, through, and stellein, to place), the 

 relaxation of the heart during which it is being filled with blood in 

 preparation for another beat. 



