342 



OUR BODIES AND HOW WE LIVE 



is popularly known as consump- 

 tion. 



Tur'bi-na'ted (Lat. turbo, a top). 

 Formed like a top ; a name given 

 to the bones in the outer walls of 

 the nasal fossae. 



Tym'pa-num (Gr. r^iravov, a drum). 

 The cavity of the middle ear, 

 resembling a drum in being closed 

 by two membranes. 



U're-a (Gr. o$pov, urine). Chief solid 

 constituent of urine ; nitrogenous 

 product of tissue decomposition. 



U-re'ter (Gr.). The tube through 

 which the urine is conveyed from 

 the kidneys to the bladder. 



U'vu-la (Lat. dim. of uva, a grape, 

 a bunch of grapes). The small 

 pendulous body at the middle of 

 the soft palate. 



Vac'cine vi'rus (Lat. vacca, a cow). 

 The virus used in performing vac- 

 cination ; now usually derived 

 directly from the cow. 



Var'i-cose (Lat. varix, a dilated 

 vein). Distended or enlarged, as 

 a vein. 



Vas'cu-lar (Lat. vasculum, dim. of 

 vas, a vessel). Pertaining to or 

 possessing blood or lymph vessels. 



Ve'nae ca'vae (Lat. pi. of -vena cava, 

 hollow vein). A name given to 

 the two great veins which meet 

 at the right auricle of the heart. 



Ven'ti-la'tion (Lat. ventilare, to 

 fan). The process of replacing 

 the foul or vitiated air in any 



room or confined space with air 

 that is pure. 



Ver'mi-fonn (Lat. vermis, a worm, 

 a.nd/orma, form). Worm-shaped. 



Ves'ti-bule (Lat. vestibulum, a fore- 

 court). A portion of the internal 

 ear, communicating with the semi- 

 circular canals and the cochlea. 



Vil'li (Lat. villus, shaggy hair). 

 Minute threadlike projections 

 upon the internal surface of the 

 small intestine. 



Vi'rus (Lat. vtrus, poison). The 

 poison of an infectious disease, 

 especially one found in the secre- 

 tions or tissues of an individual 

 or animal suffering from an infec- 

 tious disease. 



Vit're-ous (Lat. vitrum, glass). 

 Having the appearance of glass ; 

 applied to the humor occupying 

 the largest part of the cavity of 

 the eyeball. 



Viv'i-sec'tion (Lat. vivus, alive, and 

 secare, to cut). Dissection of a 

 living animal ; experimentation 

 upon an animal while still alive. 



Weal cords. Two elastic bands or 

 transverse folds of the larynx. 



X-rays, or Roent'gen rays. The 

 peculiar ether rays or waves dis- 

 covered by Roentgen in 1895. 

 These rays penetrate substances 

 like wood, the bodily tissues, and 

 many other substances which are 

 opaque to the light of the sun ; 

 extensively used in the diagnosis 

 of surgical cases. 



