POINTS AND EXTERNAL REGIONS OF THE HORSE 



The anterior boundary of the belly is formed by the 



diaphragm, laterally by the ribs, intercostal and other muscles, 



behind by the flanks, above by the vertebral bones or spine, 



' and below (the floor) by the elastic abdominal tunic and 



muscles. 



Brisket, Breast and Chest. — The brisket forms the 

 floor of the chest, being that portion of the anatomy lying 

 between, immediately behind, and in front of, the forearms. 



The Breast lies in front of the Brisket, though the two 

 terms are synonymously employed, likewise the term Chest, 

 as indicative of the same region. 



vStrictly speaking, the chest is principally formed by the 

 ribs, etc., these constituting its lateral walls, the diaphragm 

 or midrif its posterior boundary, and the breast-bone or 

 sternum its anterior portion. 



The cavitv of the chest is lined by a serous membrane — the 

 pleurcB — and contains the heart plus its great vessels, lungs, 

 nerves, lymphatic glands, etc. This cavity has the form of a 

 cone. 



Horsemen sometimes employ the term " well hearted " 

 as indicative of great depth, and width of chest, facilitating 

 the free play of heart and lungs. 



THE FORE LIMBS. 



The Shoulder is composed of a single flattened triangular 

 bone, the outer "face of which is divided into symmetrical 

 portions for the lodgment of muscles, and the inner face has a 

 well marked fossa to accommodate a muscle— the subs- 

 capularis. 



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