. A system of anatomy for the use of students of medicine (Volume 1). in which the sali-vary ducts were filled with the fluid to theirvery terminations. In the larger figure it ismagnified fifty diameters. A branch of thesalivary duct, is seen on the right margin ofthis figure, ramifying like the branch of a tree. These ramifica-tions never anastomose together, and are of much larger sizethan the capillary blood-vessels. Each ramification, at its ter-mination, resolves itself into cells, densely compacted together,like a bunch of grapes upon its stem a, a, a. Some of the cellsopen by a minute


. A system of anatomy for the use of students of medicine (Volume 1). in which the sali-vary ducts were filled with the fluid to theirvery terminations. In the larger figure it ismagnified fifty diameters. A branch of thesalivary duct, is seen on the right margin ofthis figure, ramifying like the branch of a tree. These ramifica-tions never anastomose together, and are of much larger sizethan the capillary blood-vessels. Each ramification, at its ter-mination, resolves itself into cells, densely compacted together,like a bunch of grapes upon its stem a, a, a. Some of the cellsopen by a minute excretory tube directly into the salivary other instances some of the ducts of the cells unite into acommon tube, before entering the salivary duct. The cells arenot round, and vary among themselves in regard to size. The average diameter of these cells, measured by a micro-meter, were found by Weber, to be the T-2Wh part of an inch,which he finds to be three times greater than that of the mostdelicate sanguineous vessels. The cellular structure of the pa-. THE SUBMAXILLARY GLAND. 433 rotid, seems therefore to be very analogous to the cellular struc-ture of the lungs discovered by Soemmering and cells of the lungs, however, being five or six times largerthan those of the parotid. The elaborate researches of Weberand Muller, have shown also that this is the common mode oftermination of the excretory ducts in the different glands of thebody; viz. that they terminate in closed cells, upon which ramifythe delicate secretory capillary vessels.— The second gland is called the Submaxillary. It is muchsmaller than the parotid, and rather round in form. It is situatedimmediately within the angle of the lower jaw, between it on theoutside, and the tendon of the digastric muscle and the ninthpair of nerves internally. Its posterior extremity is connectedby cellular membrane to the parotid gland ; its anterior portionlies over a part of the mylo-hyoideus muscles;


Size: 1377px × 1815px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookid101532043x1nlmnihgov, booksubjectanatomy