. The anatomy of the horse; a dissection guide. Horses. 122 THE ANATOMY OF THK HORSE. costal corteries. This series is continued by branches of the asternal artery. The Internal Thoracic Vein runs in company with the artery, and internal to it. Beneath the triangularis stemi it is placed between the artery and the fibrous cord that traverse the edge of the sternum. Suprasternal Lymphatic Glands. These include (1) a group of glands on the thoracic side of the insertion of the diaphragm across the ensiform cartilage, and (2) some small scattered glands along the course of the internal thoracic v
. The anatomy of the horse; a dissection guide. Horses. 122 THE ANATOMY OF THK HORSE. costal corteries. This series is continued by branches of the asternal artery. The Internal Thoracic Vein runs in company with the artery, and internal to it. Beneath the triangularis stemi it is placed between the artery and the fibrous cord that traverse the edge of the sternum. Suprasternal Lymphatic Glands. These include (1) a group of glands on the thoracic side of the insertion of the diaphragm across the ensiform cartilage, and (2) some small scattered glands along the course of the internal thoracic vessels. examination of the lung. Physical Characters.—The exterior of the lung is exquisitely smooth in virtue of its pleural covering. Through this thin, transparent covering, the surface is seen, especially when the lung is dis- tended, to be divided by inter- secting lines into small areas, each (if which coxTesponds to a lobule of the lung. The lines are formed by the interlobular con- nective-tissue. The colour of the lung varies with the age of the animal. In the young subject it is pale pink, but in old animals it is of a grayish or slaty hue. In the foetus it is a bright pink. The lung is spongy to the touch, and its cut surface has the same appearance. It is also markedly elastic, this quality being best illustrated by the rapidity with which the inflated lung collapses when the distend- ing force is removed. It crepi- tates on pressure with the fingers, and it floats on water. The foetal lung is non-crepitant, and sinks in water. Structure.—When the bronchus enters the lung, it divides again and again until there results a remarkable tree-like arrangement of bronchial tubes. Of this tree, the bronchus entering the root of the lung forms the main stem; and as the division is traced onwards, the bronchial tubes, representing the branches, become smaller and smaller, until. Fig. 8. Termination of the Air Passages in the Lunc (modified from Tamer). A, A. Terminal bron
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Keywords: ., bookcentury1800, bookdecade1880, booksubjecthorses, bookyear1884
