066 



OF SECRETION. 



been stated that the blood of the human Male may be distinguished from that 

 of the Female, by its more powerful odour; but this does not appear to be 

 the case, at least with sufficient certainty for medico-legal inquiries.* 



873. Besides the crypts or follicles, which have been spoken of as gene- 

 rally existing in Mucous Membranes ( 178), there exist, in that of the Intes- 

 tinal Canal, numerous glandulae in various parts, for the elaboration of par- 

 ticular secretions. In the Stomach, for example, a large number of these 

 secreting organs, some of them possessing rather a complex structure, are 

 included in the thickness of its walls, composing, indeed, the greater part of 

 the mucous membrane. If this be divided by a section perpendicular to its 

 surface, it is seen to be made up of a number of tubuli closely applied to each 

 other, their blind extremities being in contact with the submucous tissue, and 

 their open ends being directed towards the cavity of the stomach. In some 

 situations, these tubuli are short and straight ; in other parts they are longer, 

 and present an appearance of irregular dilatation or partial convolution. This, 

 indeed, is their usual character, especially towards the cardiac orifice of the 



Fipr. 269. 



Section of the coats of 

 the stomach, near the py- 

 lorus, showing the gastric 

 glands, 1, magnified three 

 times. 2, magnified twenty 

 limes. 



[Fig. 270. 



A 



A. Horizontal section of a stomach-cell, a 

 little way within its orifice, a. Basement- 

 membrane, b. Columnar epithelium. All 

 but the centre of the cavity of the cell is oc- 

 cupied by transparent mucus, which seems 

 to have oozed from the open extremities of 

 the epithelial particles, c. Fibrous matrix 

 surrounding and supporting the basement- 

 membrane, d. Small blood-vessel. 



B. Horizontal section of a set of stomach 

 tubes proceeding from a single cell. The 

 letters refer to corresponding- parts. The 

 epithelium is glandular; the nuclei very 

 delicate ; the cavity of the tubes very small, 

 and in some cases not visible. 



From the dog, after twelve hours' fasting. 

 Magnified 200 diameters.] 



* See Annales d'Hygiene, vol. i. pp. 207 and 548; vol. ii. p. 217; vol. x. p. 100, &c. 



