Diseases of cattle, sheep, goats Diseases of cattle, sheep, goats and swine diseasesofcattl00mous Year: 1905 SEMIOLOGY OF THE DIGESTIVE APPARATUS. 109 with or without the formation of false membranes, and of ulcerations, polypi, etc. (Esophagus. In consequence of its anatomical formation, situation and course, the oesophagus may be divided into two distinct parts—viz., the cervical, which can be examined from the outside, and the thoracic, which cannot so be examined. The cervical part may be examined by inspection, by palpation from one side, or by palpation with both hands and from both si
Diseases of cattle, sheep, goats Diseases of cattle, sheep, goats and swine diseasesofcattl00mous Year: 1905 SEMIOLOGY OF THE DIGESTIVE APPARATUS. 109 with or without the formation of false membranes, and of ulcerations, polypi, etc. (Esophagus. In consequence of its anatomical formation, situation and course, the oesophagus may be divided into two distinct parts—viz., the cervical, which can be examined from the outside, and the thoracic, which cannot so be examined. The cervical part may be examined by inspection, by palpation from one side, or by palpation with both hands and from both sides. Inspection leads to the detection of changes in the shape of the oesophagus and of the jugular furrow. In fat subjects, however, it is of Fig. 59.—Examination of the pharynx. little value. As the position and the course of the oesophagus are known, unilateral palpation, or, better still, bilateral palpation, employing both hands, is of very much greater service. These methods reveal the presence of swellings, infiltrations, changes in shape and sensibility, the presence of foreign bodies, the existence of dilatations or contractions of the tube, etc. Auscultation and percussion, though recommended by some prac- titioners, are not of much service. Inability to swallow, due to change in the oesophagus, is also detected by inspection. Its existence suggests a number of possible conditions, such as fissure or ulceration of the oesophagus, compression in the mediastinal region as a result of tuberculous or other disease, contraction or dilatation of the oesophagus, etc. Furthermore, inspection will betray
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