154 GLOSSARY. 



TT'tricle ") (L. utriculus. a small bag). The larger of the two 



TItri'culus ) sacs of the vestibule of the ear. 



TJ'tricle of male urethra (L. utriculus, a small bag). Another 



name for \h.e prostatic vesicle. 

 U'vula (L. a little grape). The pendent body at the back of 



the soft palate ; also a small projection in the cerebellum. 



V. 



Va'cuole (L. vacua, I make empty). A small clear space in a 



protoplasmic cell, and in the protoplasm of some Protozoa. 

 Vagi'na (L. a sheath). The passage by which the uterus 



communicates with the exterior. Applied also to the 



lower sheathing portion of the leaves of some plants. 

 Vagi'na cellulo'sa (L. cellular sheath). A name sometimes 



applied to the general external covering of nerve trunks. 

 Vagi'nal arteries (L. vagina, a sheath). The branches of the 



hepatic artery which supply the walls of the ducts, vessels, 



and Glisson's capsule of the liver. 

 Vagi'nal plex'us (L. vagina, a sheath ; plecto, I twine). The 



nerves supplied to the vagina. 

 Vagi'nal pro'cess (L. vagina, a sheath). A process of the 



temporal bone. 

 Vagi'nal syno'vial mem'branes (L. vagina, a sheath). A term 



applied to those synovial membranes which form sheaths 



for the tendons. 

 Vagi'nal veins (L. vagina, a sheath). Small veinlets in the 



liver which return the blood from the fibrous coat of the 



liver to the branches of the portal vein. 

 Va'gus (L. wandering). The tenth cerebral nerve, so called 



because of its wide distribution. 

 Valle'cula (L. a little valley). A fossa of the cerebellum. 



Also the fold of the derma in which the root of the nail is 



implanted. 



Val'vulae conniven'tes (L. little winking valves). The trans- 

 verse permanent folds of the mucous membrane of the 



small intestine. 



Vas a'berrans (L. wandering vessel). A long narrow tube lead- 

 ing from the lower part of the epididymis, and terminating 



blindly. 

 Vas de'ferens (L. bearing-to vessel). The excretory duct of the 



testis. 



