1 86 GLOSSARY. 



Thrombo'sis (Gr. thrombos, a. dot of blood). The coagulation 

 of blood within a blood-vessel. 



Tidal air. The air which enters and leaves the lungs with 

 each quiet respiratory movement. 



Tidal wave. The elevation in a pulse tracing which precedes 

 the dicrotic wave. The predicrotic. 



Tomes, Fibres of. Processes of odontoblasts which are con- 

 tained in the dentine tubules. 



Traube-Hering curves. Rhythmical variations in a blood- 

 pressure tracing, due to vaso-motor influences. 



Tris'mus (Gr. trizo, I gnash). Spasm of the muscles of 

 mastication. Lock-jaw. 



Trommer's test. For glucose and its allies : reduction of 

 copper sulphate in presence of liquor potassse. 



Troph'ic (Gr. trophe, nourishment). Applied to certain nerves 

 and centres which are concerned in nutritive processes. 



Trophoneuro'ses (Gr.trophe, nourishment ; neuron, a nerve). 

 Degenerative phenomena, due to disturbance of nutritive 

 or trophic influences ; e.g. Gangrene in spinal disease. 



Tryp'sin (Gr. truo, I rub off). The proteolytic ferment of 

 pancreatic juice, which converts proteids into peptones 

 or tryptones. 



Turck, Colnmn of. The antero-median or direct pyramidal 

 path of spinal cord. 



Tyr'osin (Gr. turos, cheese). A nitrogenous derivative, from 

 the action of trypsin upon hemipeptone. 



live 'a. Pigment cells occurring on posterior surface of iris. 

 TJrobilin (Gr. ouron, bile). A pigment occurring in urine, 



identical with hydrobilimbin. 

 Urochrome (Gr. ouron, bile ; chroma, colour). The chief 



pigment of urine, becomes converted into uroerythrin 



upon exposure to air. 

 Uterus, Involution of. The return of uterus to its previous 



size, after parturition. 



Vaso constric'tor (L. vas, a vessel ; constrictor, a narrower). 

 Applied to those nerves or impulses which are concerned 

 in the contraction of arteries. 



