. Diseases of cattle, sheep, goats and swine. Veterinary medicine. CHAPTER III. DISEASES OF THE OESOPHAGUS* The CL'sophageal tube is of very simple anatomical construction, and performs an equally simple physiological function; nevertheless, in the ox it is liable to a large number of diseased conditions. These con- ditions may affect only a circumscribed area of the mucous membrane or the entire extent of the tube. Agahi, both the muscular and mucous tissues may be affected, as in inflammation of the oesophagus accompanied or followed by contraction, and in the formation of (esophageal absces
. Diseases of cattle, sheep, goats and swine. Veterinary medicine. CHAPTER III. DISEASES OF THE OESOPHAGUS* The CL'sophageal tube is of very simple anatomical construction, and performs an equally simple physiological function; nevertheless, in the ox it is liable to a large number of diseased conditions. These con- ditions may affect only a circumscribed area of the mucous membrane or the entire extent of the tube. Agahi, both the muscular and mucous tissues may be affected, as in inflammation of the oesophagus accompanied or followed by contraction, and in the formation of (esophageal abscesses and tumours; or the muscular tissue alone may be affected, as Fm. 64.—Schema il- in cases of dilatation. Even where no lesion is . l^s^'i'ating anatomy apimrent the normal rhythm of deglutition may ° ,^^ oesopiagus. .^ . , f -, • •-•. 1 ^-u n ^ strong external 1)6 niterfered with, either by the presence of a | j, ^^ muscle, in- foreign body (obstruction) or by spasm of the mus- temiediate cellulo- cular layers (oesophagismus) or by compression due elastic layer, inner' to tissues surrounding the oesophagus (false con- ^^y^^ °^ mucous tractions). "o^s^XV able of We shall successively study the different forms ^^,^,^^ dilatation of oesophagitis, contraction, and dilatation, together with their complications; then obstructions, ruptures of the oesophagus, oesophagismus, and false contractions. (ESOPHAGITIS. Inflammation of the oesophagus may be due to many different causes, and may occur in one of three different degrees of severity. It may be either superffcial, , limited to the epithelial layer of the mucous membrane; or deep, affecting the entire thickness of the mucous mem- brane (epithelium, corium, and oesophageal glands); or, finally, it may attack both the mucous and muscular layers. German authors recog- nise various divisions, such as erythematous, catarrhal, follicular, and phlegmonous oesophagitis. In reality these are not always different fo
Size: 1927px × 1297px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectveterin, bookyear1920
