452 GLOSSARY 



Potential (energy). (From the Latin word potens, "able.") Capable 

 of acting or doing work. 



Poupart's Ligament. The ligament extending from the anterior 

 superior spine of the iliac bone to the spine of the pubic bone. It is 

 the lower border of the aponeurosis of the external oblique muscle of 

 the abdomen. 



Pretracheal. In front of the trachea. 



Prevertebral. In front of the vertebral column. 



Proligerous (disk). (From the Latin word proles, "offspring;" 

 gere, "to bear.") Producing offspring. The layer of cells in the 

 membrana granulosa of the Graafian follicle that surrounds the ovum. 



Pronation. (From the Latin word pronare, "to bend forward.") 

 The act of turning the palm downward; the opposite of supination. 



Pronator Quadratus (muscle). Square pronator. See pronation. 



Pronator Radii Teres (muscle). The round pronator of the radius. 



Protein or Proteid. Any one of the important and essential con- 

 stituents of animal and vegetable tissues containing nitrogen. 



Proteo lysis. The change produced in proteins or proteids by fer- 

 ments that convert them into diffusible bodies. 



Proteolytic Ferments. Pertaining to those ferments which are 

 characterized or effect proteolysis. 



Proteose. Any one of a group of bodies formed in gastric digestion 

 intermediate between the food proteins and peptones, called anti- 

 peptones, hemipeptones. 



Protoplasm. The viscid material constituting the essential sub- 

 stance of living cells, upon which all the vital functions of nutrition, 

 secretion, growth, reproduction, irritability, motility depend. 



Proximal. (From the Latin word proximus, ' ' the nearest . " ) Nearest 

 to the body, or the median line of the body. Proximal phalanx: The 

 nearest bone of the finger. 



Proximate (principles) . (From the Latin word proximus, ' ' nearest . " ) 

 Nearest. Proximate principles, substances which can exist under 

 their own form in the animal solids or fluids, and that can be extracted 

 by means not altering or destroying their chemic properties. 



Pterygoid. Wing-shaped. 



Puberty. From the Latin word pubertas, from puber, "adult.") 

 The period at which the generative organs become active in both 

 sexes, and become capable of reproduction. 



Pubes. The hairy region covering the os pubis (pubic bone). 



Pubic. Pertaining to the pubes. 



Pubis (Os). The bone of the pubes. The lower and anterior part 

 of the innominate bone. 



Pyloric. Pertaining to the pylorus of the stomach, as pyloric artery, 

 vein, etc. 



Pylorus. (From the Greek word meaning gate-keeper.) The 

 circular opening of the stomach into the duodenum. 



Pyramidal. Shaped like a pyramid. 



Pyramidalis (muscle). The muscle shaped like a pyramid found 

 at the lower part and inserted into the linea alba of the abdominal 

 wall. There are two. 



Pyramidalis Nasi (muscle). The pyramidal one of the nose. 



Quadratus. Squared; four-sided. 



