II 



SENSIBILITY OF THE INTERNAL OKGANS 



60 



M Miriu.i] nva ; LS = superior laryngea-] ,-uva ; LT = inferior laryngeal area; 



T0= hyoi'l aiva. 



'I'll.' t'nl lo\\ ill!,' lalik' slmws tllr ivlatimis lictwccll lilt- rillaiiron- :IM-;I- ,ind 

 tin- iutrrinl 



ii tin- Trunk and l.imlis. 



Eearl 



. 03, 04 - D-J I >s . 



Lungs . 



Stnm;lrli 



I nil >tinr 



Rectum 



Liver 



. 03, C4-D4 !)! . . . . 



. . . . D7 - D9 . . . . 



.... D9-D12 . . . 



.... Sac. 2 - Sac. 4 . . 



. 03, 04 - D7 - D10 . . . 

 G.-ill Madder . . D8 - 1)9 . . . . 

 Kidney and urethra Dll-Ll . . . . 

 Bladder (murous membrane and inrk) 



Sac. 3 - Sac. 4 . . 

 Detrusor vesicae . D11-L2 

 Prostate . . DlO - D12 Sac. 1 Sac. 3. 



Kpididymis . Dll - D12 



Testicle . . DlO 



Ovary . . . DlO 



Ovarian appendix Dll - Ll . . . . 



Uterus . . DlO -LI 



Neck of uterus .... Sac. 2 Sac. 4. 

 Mammae . . . . D4 - D5 . . . 

 Spleen (from Signorelli) D6 . . . . 



Area in the Head. 



I Ventricles and aorta, N, FN, MO. I-T. 

 I Auricle's .... FT, T, V, I' . . 



. . N, FN, MO, FT, T, V, P. . . 



. . FN, MO, T, V, I' 



V, \',0 . . . . 



FN, MO, T, V, 1', 

 ... T, V . . 



O 

 O 



IV. Of internal sensations summed up under the generic 

 name of " desires," that for food is certainly one of the most im- 

 portant from the teleological point of view, because it is directed 

 to satisfy ino- unc of the conditions indispensable to life the supply 

 of nourishment. In its milder stages this desire is not unpleasant 

 and is even an agreeable feeling, commonly known as "appetite"; 

 \vlieii more insistent it becomes painful and oppressive and is 

 known as "hunger." 



In most of the higher animals and man appetite and hunger 

 are rhythmical sensations, which do not occur until a certain time 

 after the meal, according to the habits of the individual. In man 

 they are generally felt 5-6 hours after the morning meal, 12 hours 

 after the evening meal. "Regularity of meals," said Beaunis, 

 "causes the sensations of hunger to recur with the precision of 

 clockwork." Change of habit in the hours of meals is able to 

 modify the rhythm of hunger: if the meal is delayed L-2 hours 

 the appearance of hunger is delayed by a corresponding t ime. 



The degree of hunger varies conspicuously in different in- 

 dividuals, and in relation to age, to the rate of metabolism in 

 different constitutions, in different seasons, different professions, 

 and so on. 



Generally speaking, hunger is an unpleasant sensation at the 

 level of the epigastric region, which disappears and is replaced by 



