264 GLOSSARY. 



Vaso-mo'tor. [From the Lat. vas, a " vessel," and moveo, motum, to " move."] 

 Causing motion to the vessels. Vaso-motor nerves cause contraction and 

 relaxation of the blood-vessels. 



Ve'nae Ca'vae, pi. of Ve'na Ca'va. [Lat.] " Hollow veins." A name given 

 to the two great veins of the body which meet at the right auricle of the 

 heart. 



Ve'nae Com'ites. [Lat.] " Attendant veins." Veins which accompany the 

 arteries. 



Ven'tral. [From the Lat. venter, ventris, the "belly."] Belonging to the 

 belly cavity. 



Ven'tricle. [From the dim. of Lat. venter, the "belly."] A small cavity. 



Ver'miform. [From the Lat. vermis, a " worm," &ud forma, " form."] Worm- 

 shaped. 



Ver'nix Caseo'sa. [Lat.] " Cheesy varnish." The fatty varnish found on 

 the new-born infant, which is secreted by the sebaceous glands of the 

 skin. 



Ver'tebrae, pi. of Ver'tebra. [Lat. from verto, to " turn."] The bones of the 

 spine. 



Vil'li. [Lat. pi. of villus, "shaggy hair."] The conical projections on the 

 valvulae conniventes, making the mucous membrane look shaggy. 



Vis'cera. [Lat.] The internal organs of the body. 



Vitel'line. [From the Lat. vitellus, the "yolk of an egg."] A term applied 

 to the yolk membrane. 



Vetl'lus. [Lat. from vita, "life."] The yolk of an egg. 



Vit'reous. [From the Lat. vitrum, " glass."] Glass-like. A name applied to 

 the transparent, jelly-like substance which fills the back part of the eye- 

 ball behind the crystalline lens. 



Vo'mer. [Lat. a "ploughshare."] The thin plate of bone shaped some- 

 what like a, ploughshare which separates the nostrils. 



Vul'va. The external female genitals. 



Zo'na Pellu'cida. [Lat.] "Pellucid zone." The broad, transparent ring 

 which surrounds the yolk in the centre of the ovum. 



