GLOSSARY 493 



Pec'toral. [From the Lat. pectus, pectoris, the " breast."] Pertaining to 

 the breast, or chest. 



Ped'icle. [From the dim. of Lat. pes, pedis, a " foot."] A stalk. 



Pedun'cle. [From the Lat. pedunculus, dim. of pes, a " stalk," a " foot."] 

 A narrow part acting as a support. 



Pel'vic. [From the Lat. pelvis, a " basin."] Pertaining to the pelvis, 

 the basiii, or bony cavity, forming the lower part of the ab- 

 domen. 



Pep'sin. [From the Gr. pepto, to " digest."] A ferment found in gastric 

 juice, having power to convert proteins into peptones. 



Pep'tone. [From the Gr. pepto, to " digest."] A term applied to protein 

 material digested by the action of the digestive juices. 



Pericar'dium. [From the Gr. peri, " about," " around," and kardia, the 

 "heart."] The serous membrane covering the heart. 



Perichon'drium. [From the Gr. peri, " about," " around," and chondros, 

 a " cartilage."] The serous membrane covering the cartilages. 



Per'ilymph. [From the Gr. peri, " about," " around," and the Lat. 

 lympha, " water."] The fluid in the osseous, and surrounding the 

 membranous labyrinth of the ear. 



Perimys'ium. [From the Gr. peri, " around," and mus, " muscle."] The 

 connective tissue septa connecting and enveloping the separate fas- 

 ciculi of a muscle. 



Perine'um. [From the Gr. perinaion.] The region of the body between 

 the thighs, extending from the anus to the fourchette in the female, 

 or to the scrotum in the male. 



Perios'teum. [From the Gr. peri, " about," " around," and osteon, a 

 " bone."] The membrane covering the bones. 



Periph'eral. [From the Gr. peri, " about," " around," and phero, to 

 " bear."] Pertaining to the periphery, or circumjerence; that which 

 is away from the centre and towards the circumference. 



Peristal'sis. [From the Gr. peristello, to " compress."] Peristaltic ac- 

 tion. A term appUed to the worm-like movement of the intestines 

 by which its contents are propelled downward. 



Peritone'um. [From the Gr. periteino, to " stretch around," to " stretch 

 all over."] The serous membrane lining the walls and covering the 

 contents of the abdomen. 



Permeable. [From the Lat. per, " through " and meare, " to pass."] 

 Capable of being passed through; substances which allow the pas- 

 sage of fluids. 



