1 82 GLOSSARY 



T. 



Tar'sal bones, the short bones in the hinder half of the foot. 

 Tears, the saltish liquid which runs over the eyeball. 

 Ten'don, a strong cord connecting a muscle with a part to be moved. 

 Tho-rac'ic duct, a tube like a goose quill, which extends up the front 



side of the backbone, and carries the lymph to the blood. 

 Tho'rax, the part of the inside of the body which is covered with ribs. 

 Tib'i-a, the shin bone, extending from the knee to the ankle. 

 To-bac'co, a narcotic plant used in smoking and chewing, and as snuff. 



U. 



Ul'na, the bone extending from the elbow to the wrist upon the little 



finger side of the arm. 

 U're-a, the solid waste of the body. It is the ashes of albumin, and is 



taken from the blood by the kidneys and skin. 



V. 



Vein (vane), a tube carrying blood away from the cells and back toward 



the heart. 



Ven-ti-la'tion, replacing the impure air of a room with pure air. 

 Ven'tri-cle, one of the thick lower pockets of the heart. 

 Vil'lus, one of the tiny fingers which project into the intestine from its 



mucous membrane. 

 Vo'cal cords, the bands in the larynx, which are set in motion by air 



to form the voice. 



Y. 



Yeast, microscopic plants, each made of only a single cell. By their 

 growth they form alcohol and a gas. In making bread, the gas 

 bubbles through the dough and puffs up the loaf until it is light. 

 Yeast cakes are a kind of dried bread dough. 



