3/0 GLOSSARY, 



Thyroid (thi'-roid). Shield-shaped, as the thyroid cartilage of the 

 larynx. 



Tibia (iW^-a). The larger (inner) of the two bones of the leg, com- 

 monly called the shinbone. 



Trachea (tra-kef-a or tra'-ke-a}. The windpipe. 



Triceps (<ri'-cp). Triceps of the arm, the extensor of the arm, lying 

 along the back of the humerus. 



Tricuspid (tri-kn^-pid). Having three cusps or points, as the tricuspid 

 valve. 



Trypsin (trip' -sin). The proteolytic ferment of pancreatic juice. 



Ulna (w/'-na). The larger (inner) of the two bones of the forearm. 



Ureter (u-re'-fer). The tube conveying the urine from the pelvis of the 

 kidney to the bladder. 



Vase-constrictor (vatf-o-konrstrik'-tor). Causing a constriction of the 

 blood-vessels. 



Vase-dilator (vaS-o-dl-la'-tor'). Pertaining to the positive dilating mo- 

 tility of the non-striated muscles of the vascular system. 



Vaso-motor (t>ow-6-nu/-or). Serving to regulate the tension of the 

 blood-vessels, as vaso-motor nerves ; including vaso-dilator and 

 vaso-constrictor mechanisms. 



Ventricle (ven'-tri-kl). Applied to certain structures having a bellied 

 appearance. The cavities of the heart from which the blood is 

 forced out through the arteries. 



Vesicle (ves'-i-kl). A small, membranous, bladder-like formation, as 

 air vesicle. 



Villas (trtJ'-tt*), pi. villi. One of the numerous minute vascular projec- 

 tions from the mucous membrane lining the small intestine, for ab- 

 sorbing digested food. 



Vitreous (wY-re-u). Glass-like, as the clear, jelly-like, vitreous humor 

 of the eye. 



