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GLOSSARY. 



P5re. The outlet of a sweat-duct. 



Proc'ess. A bony projection from 

 a bone. 



PfiFmo-na-ry (Lat., pulmo, a lung). 

 Pertaining to the lungs. 



Pti'pil. The central opening in the 

 iris 



Py-lo'rus. A muscular ring which 

 surrounds the outlet of the stom- 

 ach. 



Ra'di-al. Pertaining to the ra- 

 dius. 



Ra'di-us. The outer bone of the 

 fore-arm. 



Re's-pi-ra/tion. The process by 

 which oxygen is introduced into 

 the blood, and carbonic-acid gas 

 and vapor, and other matters, are 

 discharged from it. 



Ret'i-na (Lat., rete, a net). The ter- 

 minal fibers of the optic nerve lin- 

 ing the back part of the eye. 



Sa'crum. A part of the backbone. 



Sa-H'va. Spittle. 



Sar-t5'ri-us. A muscle extending 

 from the hip to the leg, on the 

 front of the thigh. 



Scap'u-la. The shoulder-blade. 



Scle-rot'ic (Lat., scleroticus, hard, 

 firm). A term applied to the outer 

 coat of the eye. 



Se-ba'ceous (Lat., sebaceus, tallowy). 

 Applied to glands in the skin that 

 produce a fatty fluid. 



Sem-i-lu'nar. Shaped like a half- 

 moon. 



Sew'age. The contents of sewers. 



SkeTe-ton. The framework of an 

 organized body, of bone or other 

 firm material. 



Skull. The bony frame of the 

 head. 



Spi'nal ca-naT. The canal in the 

 center of the backbone. 



Spl'nal col'umn. The backbone. 



Spi'nal cord. A cord of nerve- 

 matter in the spinal canal. 



Sprain. An injury to the ligaments 

 or tendons about a joint. 



Sta-pe'di-us. A very small muscle 

 in the drum of the ear. 



Ster'num. The breast-bone. 



StTm'ii-lant (Lat., stimulus, a goad). 

 That which goads or excites. 



Sub-cla'vi-an. Beneath the clavicle. 



Sub-lm'gual (Lat., sub lingua, un- 

 der the tongue). The name of a 

 salivary gland. 



Sub-mSx'il-la-ry (Lat., sub maxilla, 

 under the jaw). The name of a 

 salivary gland. 



Syii-o'vi-a. Joint-water. 



Syn-o'vi-al mem'brane. A thin 

 membrane which lines the joint- 

 cavity, and gives out the joint- 

 water. 



Sys-tem'ic. Pertaining to the gen- 

 eral system. 



Tape'worm. A worm that lives in 

 the alimentary canal. 



Tar'sus. A portion of the foot be- 

 tween the leg and the metatarsus. 



Ten'don. A cord of white, fibrous 

 tissue connected with a muscle. 



Ten'don of A-chil'les. The ten- 

 don of the gastrocnemius and so- 

 leus muscles inserted in the heel. 

 It was fabled that this was the only 

 part in which Achilles was vul- 

 nerable. 



Tho'rax. The chest. 



TIb'i-a. The shin-bone. 



Tib'i-al. Pertaining to the tibia. 



Trans-fu'sion (Lat., trans, across, 

 fundere, to pour). Pouring blood 

 from the veins of one person into 

 those of another. 



Tri-chi'na. A small worm that 

 lives in the muscles of pigs, and of 

 some other animals, and of men. 



