208 I'Ol-LTkY DlSlilASES AND THEIR TREATMENT. 



Pcriciiniiuiii. — The imMuhraiKms sac wliicli contains tlic licart. 



l'cvisUilsis.~'V\\v worm-like movements of the intestine and oviduct by 

 whicli the contents of these tubes are propelled. 



/'.'ri7(»;///i\!r.--Inlianimatinn of the peritoneum i>r the membrane lining the 

 abdominal cn\ i;.v. 



/'//</rv».r.— That prirtinn of the alimentary canal between the mouth and 

 the oesophagrs. It also eommunicatc:; with the 

 larynx and nasal passages at its upper end. 



Prognosis.— "Vh' prospect as to recovery from a disease or a forecast 

 as to the probable result of an attack of a disease. 



Protoplasin. — .V viscid granular material which forms the essential con- 

 stituent of tlic living cell. Living substance. 



Protozoa. — A class of unicellular animal micro-organisms. 



Provciitriculus.— That portion of a bird's alimentary canal lying be- 

 tween the cro]) and the gizzard. Often called the 

 stomach. 



Puucliform hciiiorrliagrs. Presenting the appearance as if punctured 

 by a large number of fine prickle or needle holes 

 from whi;-h the blood oozes. 



Purgative. — Causing evacuations cf the bowels. 



Pyaemia. — Blood poison due to microbic origin. 



Sarcoma.— A kind of tumor or cancer not always of a malignant nature. 



Scabies. — A contagious skin disease cavsed by a mite. 



5f/i'/o//c-.— Pertaining to the hard white tibrous membrane which with 

 cornea forms the outermost coats of the eyeball. 



5rrH;;;.— The clear lirp.nd which separates from the clot and the corpus- 

 cles in the clotting of blood. '■■ 



Spleen. — An oval shaped organ normally about one-half inch in diameter 

 and of a dark red color. It lies iir.meoictely above 

 the. liver and between that and the proventricv.Uis. 



Spore. — The reproductive cell of many protozoa and of i^^any lower 

 plants. It is usually enclosed in tough menihranes 

 and is difficult to kill. 



Stigma. — See p. 157- 



Subcutaneous.^— Bei^esth the skin. 



Sub-mucosa. — The layer of tissue situated beneath the mucous mem- 

 brane. 



Syncope (sin-ko-pe). — Fainting. Failure of the heart's action. 



Trachea. — The wind-pipe. 



Traumatic. — Caused by an injury. 



Therapeutic. — Pertaining to the art and science of healing. 



Urate. — A salt of uric acid. A product of the secretion of the kid- 

 neys. The white part of a fowl's droppings. 



Ureters. — The tubes leading from the kidneys to the cloaca. 



Uterus. — See p. 158. 



Vagina. — That portion of the nvidnct between the shell gland and the 

 cloaca. 



Virulent. — Extremely poisonous or dangerous. 



Virus. — .\ny animal poison, especially one produced by an 1 capable of 

 transmitting a disease. 



Viscera. — The internal organs of the bod^^ 



