488 GLOSSARY 



Ju'gular. [From the L&t. jugulum, the "throat."] Pertaining to the 

 throat. 



Katabol'ism. [From the Gr. katabole, " a throwing down."] Pertaining 

 to katabolism, the process by means of which complex substances 

 are rendered more simple and less complex. The opposite of 

 anabolism. 



Karyokine'sis. [From the Gr. karuon, " a nut," and kinein "to move."] 

 The indirect division of cells, in which prior to the division of the 

 cell protoplasm complicated changes take place in the nucleus, at- 

 tended with movement of the nuclear fil:)rils. 



Lac'rimal. [From the Lat. lacrima, " tear."] Of or pertaining to tears. 

 Lacta'tion. [From the Lat. lac, ladis, " milk."] The period of gi\'ing 



7mlk. 

 Lactiferous. [From the Lat. lac, " milk," and ferre, " bear."] Bearing, 



or conveying, milk, as a lactiferous duct. 

 Lacu'na, pi. Lacu'nse. [Lat. a " cavity," an " opening."] A httle hollow 



space. 

 Lambdoi'dal. [From the Gr. letter A (Lambda), and eidos, " fonn," 



" rosemblanco."] ResembUng the Gr. letter A. 

 Lamel'la, pi. Lamel'lae. [Lat.] A thin plate, or layer. 

 Laryn'goscope. [From the Gr. laryg.v, the " larynx," and skopeo, to 



" look at."] The instrument bj' which the larynx may be examined 



in the living subject. 

 Lar'ynx. The upper part of the air-passage, between the trachea and 



the base of the tongue. 

 Latis'simus Dor'si. [Lat. superlative of latus, " broad," " wide," and 



dorsum, the "back."] The widest muscle of the back. 

 Lens. [From the Lat. lem, " a lentil."] A transparent substance, 



ground ^^^th two opposite regular surfaces, either both curved, or one 



curved and one plane. There are two general classes of lenses : 



(1) concave, which are thinner at the centre than at the edges; 



and (2) convex, which are thicker at the centre than at the edges. 



(See page 43 L) 

 Lip'ase. [From the Gr. lipos, " fat."] An enzyme of the pancreatic 



juice, capable of decomposing fats. Same as steapsin. 

 Lob'ule. [From the dim. of Lat. lobus, a " lobe."] A stnall lobe. 

 Lum'bar. [From the Lat. lumbaris, the " loin."] Pertaining to the 



loitis. 



