II Al 



544 



HEART 





i 



H.'s Con- 

 sump 



the 



li]. 



i tnachin 



In . the 



netrating 



! which 



In phar- 

 , the form ol 



- 

 ■ 



■>t. 

 H., Glands of. 

 H.. Spaces o; ind irregular spaces 



lainly, though also to a lim- 



Canal - and 



H. System in bone, consisting 



. surrouni 



ye], i. The 



membrane, or winker of a 



condition of, the 



hawk]. Clearing 



air. 

 . ooJ. \ ids for 



: tat. O.61 ; 



irch, 10. 97 ; 

 albuminoids, 5.3S; 



iy]. ( ' and dried. 



H.-cold. Sam.- as 

 H -fever. 

 :.-thod. - <ds of. H.'sRe- 



1 

 H 



named after 

 ical 



puted. A 

 r cent. ) i- a 



■ ■ ■ 



H 



H 

 H 



H 



n of 



r in the 



olution th 



lard 



turn. 

 H.'s Fluid, 

 lied 

 urn, two 



mil 

 the 



ity with lint saturated with dilute sulphuric acid, 



third the official strength, to hasten tin- separation 



diseased tissues, i<> stimulate granulations, and to 



Head [ME.,/ ■■'. th' 1 bead]. The anterior or 



upper pan l tin- body. That part of tin- body ion 

 Mining the brain or central nerve system. Also, the 

 upper end of a long bone, a- the femur. H.-ache, 

 any pain in the head, general or local, arising from 

 any cause whatever. According to Hughlings-Jack- 

 idaches, such as " sick " and " bili- 

 ous " headaches, are due to disorders of the digestive 

 system; headache al the vertex, to cerebral troubles; 

 and occipital headai he, to anemia. Eye strain i- a 

 frequent source of headache, especially in the frontal 

 i hi. H. breeze, Electro therapeutic, a device 

 for general static cephalic electrization by a head plate, 

 with numerous insulated pencils for subdividing and 

 cumulating strong currents, and giving more grad- 

 ual effects. See Static Breeze. H. -birth, the birth 

 of the fetal head first. H.-drop, a peculiar nervous 

 disease seen in Japan during the spring anil early sum- 

 mer, supposed to be miasmatic in origin. It is at- 

 tended with inability to hold the head erect, paralytic 

 symptoms in the limbs, and optic disorders. One at- 

 tack predisposes to others. H.-fold, an inflection or 

 tucking-in of the layers in front of and beneath the head 

 of the embryo. H.-gut. See Fore-gut. H. -kidney. 

 Same as Pronephros. H. -light Oil. See Burning 

 Oil. H. -locking, a term in obstetrics denoting the 

 entanglement of the heads of twins at the time of 

 birth. H. -measurements. See Craniometry. 



Heal (hll) [MIC, helen, to heal]. To make whole or 

 sound ; to cure. H.-all. See Collinsonia. 



Healing (he'-ling) [ME., helen, to heal]. Union ami 

 cicatrization of a wound; applied generally to the 

 cure of disease. H. by First Intention, without the 

 granulating process. H. by Second Intention, by 

 the intermediation of granulations. H. by Third 

 Intention, the direct union of two already granulat- 

 ing surfaces. 



Health (heith) [ME., heith, health]. That condition 

 of the body and its organs necessary to the proper 

 performance of their normal functions. A hale or 

 whole condition of body. H.-lift, an apparatus for 

 exercising those muscles by which weights are lifted 

 directly upward. 



Hear [hlr) [ME., keren, to hear]. To perceive by the 

 ear. 



Hearing {h.Sr'-ing') [ME., heren,\.o\i&zx\. The special 

 ■ which the sononms vibrations of the air are 

 communicated to the mind. The cerebral center is 

 excited by tin vibration of the fluid contents of the 

 labyrinth, or terminal organs of the auditory nerve. 

 Sound presents three elements, pitch, intensity, 

 and timbre. The first depend- upon the number of 

 the aerial vibration-; the second upon their amplitude ; 

 the third up 'ii their form. 



Heart [hat '< \ ME., hart, heart]. The organ giving the 



initiative and chief impulse to the circulation of lie 



blood. It is enveloped by a membranous tissue called 



'turn. It consists essentially of four < avities, 



md ventricle, and a left auricle and 



ventricle. The movements of the heart maybe re- 



ded by mean- of the cardiograph, ami th "'gs, 



. may be of value in the study of 



d condition-. H., Dilatation of, the abnormal 



increase in size of any or all of the cavities of the 



heart. H. -burn, a burning fei ling at the epigastrium 



and ]o aused by tie- a< 'tic or 



putrefactive tion ol the gastric contents. H.- 



clot, coagulation "I the blood in the cardiac cavities; 



