ANATOMY AND DISEASES OF THE HOG. 



CHAPTER VII. 



n.c Skeleton cf the Hog Skull and Snout Teeth Brain Apoplexy Inflammation of tht 

 Brain Phremtis The Spinal Cord Epilepsy Palsy and Paralysis Tetanus Rabies Nasa. 

 Catarrh The Larynx The Pharynx The Os Hyoides Strangles and Quinsy The Chest- 

 Diseased Valves of the Heart The Bronchial Tubes Inflammation of the Lungs, or Rising 

 of the Lights Pleuro-Pneumonia Epidemics. 



A VERY slight acquaintance with that complicated and beautiful 

 structure which we term the animal economy, will be sufficient to 

 convince us that any rational method of investigating or treating 

 disease must be founded upon an acquaintance with the general con- 

 struction of the frame, the derangements and alterations to which it 

 is liable, and a concise notion of the various systems or sets of organs 

 of which the body is composed. Without this amount of knowledge 

 it will be impossible correctly to interpret those signs of alteration 

 of structure or function which constitute the symptoms of disease, 

 and indicate its nature and seat. 



If we would understand how to regulate the working of some 

 complicated machine, ve must not content ourselves with a mere 

 cursory glance at its exterior, but closely inspect the different parts ; 

 make ourselves acquainted with their shape, situation, and arrange- 

 ment ; inquire into the principles upon which the whole is construct- 

 ed, its mode of action, and the offices which each part was destined 

 to perform. Proceeding thus, we shall arrive at a knowledge of 

 the best means of preserving it from injury, repairing any accident 

 that may happen to it, and maintaining it in a fit state for the effi- 

 cient discharge of the duties it was intended to perform. 



The animal economy consist of parts or organs, differing from each 

 other in structure and function, yet all so intimately connected 

 together, and so mutually dependent upon each other, that the 

 cooperation of the whole is necessary to a state of perfect health ; 

 and if any one part suffer injury, the neighboring organs sympathize 

 with it to a greater or less extent, and the working of the whole 

 system is impaired. In order to arrive at a proper understanding 

 of the functions of any one part of the body, we must study the 

 whole ; there is no other way of obtaining that insight into disease 

 which will furnish us with a clear idea of the precise nature and seat 

 of a malady, and the course of treatment most likely to be attended 

 with success. The uninfc rmed empiric wi/o deals about his noa 



