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GLOSSARY OF IMPORTANT TERMS 



Ventricle (ven'tri k'l) : a muscular 

 chamber of the heart, which forces 

 the blood out. 



Vermiform appendix (vur'mi form) : 

 a narrow tube about four inches 

 long, closed at the outer end, near 

 the beginning of the large intestine 

 of man. 



Vertebrae (vur'te bre) : bones of the 

 vertebral column. 



Vertebrate : an animal having a back- 

 bone. 



Villus (yH'tis) : a minute projection, 

 an absorbing organ of the small 

 intestine. 



Vitamins (vi'tci minz) : any of the 



group of constituents in food which 

 are considered necessary to prevent 

 various diseases and to stimulate 

 growth. 



Voluntary (vol'im ta ri) : subject to 

 the will (used with reference to 

 muscles), as opposed to involun- 

 tary. 



; Xylem (zl'lem) : the inner woody part 

 of a fibrovascular bundle which con- 

 ducts water up the stem. 



Zygospores (zi'go spors) or Zygotes : 

 spores formed by union of sex 

 cells. 



