1/8 GLOSSARY 



Germs, tiny living plants which cause catching diseases. They are 



also called bacteria and microbes. 

 Gland, a collection of tubes made of epithelial cells which produce 



a substance out of the blood. 



H. 



Heart, the muscular pump which forces blood through the body. 

 He-red'i-ty, the influence which is transmitted at birth from parents to 



children. 

 Hu'mer-us, the bone of the upper arm, extending from the shoulder to 



the elbow. 



I. 



In-flam-ma'tion, heat, swelling, redness, and pain in a part. It is the 



result of an injury and generally is associated with the growth of 



disease germs. 



The heat, swelling, and redness are due to an increased flow of blood 



to repair the injury. The pain is due to pressure upon the nerves 



owing to the increased flow of blood. 

 In-spi-ra'tion, taking air into the lungs. 

 In'step, the arch of the foot. 

 In-tem'per-ance, eating or drinking for mere pleasure, or when the 



body does not require nourishment. 

 In-tes'tine, the tube in the lower part of the body, into which food 



passes from the stomach, and in which it is mainly digested. 

 In-vol'un-ta-ry mus'cle, a muscle which acts without regard to our 



knowledge or effort, as the muscle of the heart or stomach. 



J- 



Joint, the union of two bones, whether flexible or not. 



K. 



Kid'ney, a red gland which separates urea and other waste matters 

 from the blood. 



L. 



Lac'te-al, one of the lymphatic tubes which begin in a villus and earry 



away digested fat. 

 Larynx (Jar' inks), the box made of cartilage situated at the beginning 



of the windpipe. In it the voice is produced. 



