GLOSSARY 373 



Carbon di-ox'ide : a gas composed of oxygen and carbon, always 



present in expired air; also called carbonic acid gas. 

 Car'bon-ate : a salt of carbonic acid, as limestone. 

 Car'di-ac (Gr. kardia, the heart) : pertaining to the heart, as the 



cardiac nerves. 

 Ca-rot'id arteries (Gr. karotides, from karos, heavy sleep. The early 



Greeks believed these arteries in some way caused drowsiness) : 



one of the two main arteries of the neck carrying blood from the 



aorta to the head. 

 Car'pus (Gr. karpos) : the wrist. 



Car'ti-lage (Lat. cartilago) : a translucent elastic tissue; gristle. 

 Cartilages of San-to-ri'ni : little horn-shaped projections on top of the 



arytenoids in the larynx. 

 Cartilages of Weis'berg: small bits of cartilage in folds of the 



mucous membrane of the larynx. 



Cell: one of the ultimate units of which all living bodies are com- 

 posed. 

 Cel'lu-lose : the substance which constitutes the essential part of the 



solid framework of plants. It is a carbohydrate. 

 Cen'trum (Lat., center) : the stout, bony body of a vertebra, to which 



is attached the neural arch. 

 Cer-e-bel'lum (Lat., diminutive of cerebrum, brain) : the large lobe of 



the hind brain between the cerebrum and the medulla oblongata. 

 Cer'e-bro-spi'nal fluid : the watery substance which fills the cavities 



of the brain and the spinal canal, and bathes the outer surfaces of 



the brain and spinal cord. 

 Cerebro-spinal me-nin'ges (Gr. menigx, a membrane) : the three 



membranes of the brain and spinal cord. 

 Cerebro-spinal men-in-gi'tis : inflammation of the membranes of the 



brain and spinal cord. 

 Cerebro-spinal system : the brain and spinal cord, with the nerves 



arising from them. 

 Cer'e-brum (Lat., brain) : the anterior and principal part of the 



brain. 

 Cer'vi-cal (Lat. cervix, neck) : of or belonging to the neck, as the 



cervical vertebrae. 

 Chem'i-cal a-nal'y-sis : the separation of a compound substance, by 



chemical processes, into its constituent elements. 

 Chemical element : a substance which cannot be decomposed by any 



known means into two or more kinds of matter. 



