The regeneration ofsecretory glands is usually incomplete, cicatricial tissue taking the place of the glandular substance which has been destroyed.
The nerve fibres are chiefly of the medullated type, and they run without interruption from a nerve cell or neuron in the brain or spinal medulla to their peripheral terminations in muscle, skin, and secretory glands.
No well localized vaso-motor or Usually there are lachrymation, secretory complications.
If, on the contrary, new eggs are continually secreted by the ovaries, it is equally evident that the secretory action must, sooner or later, become exhausted by the over excitement caused by the indulgence above mentioned.
There were no trophic vasomotor orsecretory disturbances.
As soon as the generative organs of Petromyzon are developed at transformation, all trace of its connection with a genital duct vanishes, and presumably its internal secretory function alone remains.
We should, therefore, expect to find secretory nerves to nephridial organs, though possibly not to coelomostomes.
In the latter organ we ought especially to be able to obtain a clear answer to this question, for is {477}it not a gland which secretes into a duct and might therefore be expected to be innervated in the same way as other secretory glands?
This parasitic growth does not become developed upon healthy mucous membrane with normal secretory products.
Hemming and hawking to clear the throat often become habitual, especially in cases associated with chronic internal rhinitis, being provoked in many instances by secretory products which drop into the pharynx or glide along its walls.
As regards the form of the new cells, it cannot now be doubted that they are descendants of the secretory gland-cells and of the epithelial lining of the ducts.
Glandulation respects the secretory vessels, which are either glandules, follicles, or utricles.
Defn: An unorganized proteolytic ferment or enzyme contained in the secretory glands of the stomach.
Defn: The situation and structure of the secretory vessels in plants.
An unorganized proteolytic ferment or enzyme contained in the secretoryglands of the stomach.
The situation and structure of thesecretory vessels in plants.
The use of gland extracts in the treatment of aplasias of the pluriglandular system has become an established therapeutic measure of miraculous potency (Bayard Holmes: The Internal Secretory Glands, Lancet-Clinic, Sept.
These substances, individually and severally, together with their derivatives, are devoid of secretory action.
Injections of secretin produce a marked vasodilatation, but the secretory effect is independent of the blood pressure changes.
This increased action of a secretory organ may be sustained for a limited time without permanent injury, but, if long continued, a diseased action of the organ will follow.
Were it not for this variety of absorption, dropsy would generally exist in the cavities of the brain, chest, and abdomen, from the continued action of the secretory vessels.
The secretory organs require the stimulus of pure blood.
What is the effect when one secretory organ performs the office of another?
If this fluid is vitiated, the action of the secretory organs will be more or less modified.
Each hair is enclosed beneath the surface by a vascular secretory follicle, which regulates its form during growth.
The function of the circulatory and secretory organs, together with the operations of absorption and nutrition, should be steadily maintained, as vitality and the generation of animal heat are intimately connected with these processes.
It consists of various glands or secretory organs in different parts of the body, such as those in the skin, the kidneys, the lymphatic glands, the spleen, etc.
It is full of organs belonging to the digestive system and secretory system, by which the fuel or food is rendered fit for use in the blood and the body.
Thus the cells which carry on the work of digestion form a lining membrane to a tube or sack, and constitute a tissue known as a secretory epithelium.
The cells are mainly filled with an immense number of highly refracting spherules, probably secretory globules, but held by Grube, from the fact of their dissolving in ether, to be fat.
The nuclei of the cells are placed close to the supporting membrane, and the remainder of the cells are filled with very closely packed secretory globules, which have a high index of refraction.
Excretion: the act of getting rid of waste products: any material or substance produced by any secretory glands or structures and which is voided or otherwise sent out from them.
Crypts: minute secretory follicles or cavities: specifically, large gland-like structures between the epithelial cells in chylific ventricle.
While these structures in some forms very probably have assumed a secretory function (Figs.
In many forms the digestive secretory and absorbing area is augmented by the development of folds, valves, diverticula, villi and papillae from the mucous surface of the intestine.
In these forms the evident purpose of the spiral fold is to retard the movement of the intestinal contents and to increase the area of the secretory and absorbing surface.
The pressure of the secretion in the alveoli causes the cells to cease to secrete, much in the same way that pressure in the ureters injures the secretory action of the renal epithelium.
The same substances diffusing from the ovum during its development in the uterus would continue to stimulate the follicle cells, and thus explain not merely their persistence, but their secretory activity.
The materials for this, at any rate, passed through the follicle cells, and it is probable that these cells were not entirely passive, but actively secretory in the process.
The secretory fibers convey the impulse to the cells of the glands and excite the activity of the gland, and its particular product is secreted or evolved, as, for instance, milk in the mammary gland.
In the early stage of an inflammation of a secretory organ its secretion is diminished.
The drug appears to have no influence upon the contractile cells that constitute muscle-fibre, any more than it has directly upon the secretory cells that constitute any gland.
Perhaps its most remarkable action is that upon the terminals of nearly all the secretory nerves in the body.
The lining of glands is secretory epithelium; the cells are usually cubical or polygonal (8, g.
In Scolia there are two secretory vessels, which enter the reservoir in the middle on each side[622].
We may conclude in general, that the secretory organs are membranous sacs or vesicles, perhaps terminating in longer or shorter blind filiform vessels, sometimes secreting a fetid fluid, and at others a fetid gaseous effluvium.
A secretory organ filled with a thick white fluid, which is supposed to lubricate the passage.
And at certain points local enlargements of the secretorysurface take place so as to form glandular diverticula.
The typical secretory cells of the glands are found lining the terminal portions of the ramifications and extend upwards to varying degrees.
In compound glands the more typical or secretory epithelium is found forming the terminal portion of each branch, and the uniting portions form ducts and are lined with a less modified type of epithelial cell.
In the secretory portion of the gland and in the smaller ducts the epithelial layer is one cell thick only.
In the second main variety of gland the secretory portion is enlarged and the lumen variously increased in size.
This is seen typically in secretory and excretory cells, which usually lie below the surface on to which they pour their secretions.
They have been considered as secretory organs, answering to the pancreas in vertebrate animals.
Carabus auratus, which will serve for an example: A represents the secretory sacs aggregated together like a bunch of grapes, B the canal, C the pouch which receives the secretion, D the excretory duct.
This is only what is to be expected, since the muscularis of their stomach--much more important than its secretory function--has not been accustomed to as much exercise as is now being demanded of it.
We now know that the motor function of the stomach is much more important than its secretory function.
Apparently nervous control is lost and then the secretory neurosis manifests itself sometimes in conjunction with painful or motor affections.
A number of people have been found in the course of routine stomach examinations who proved to have no secretory function of the stomach and yet suffered no symptoms at all attributable to this fact.
By derivation, catarrh is the same word also as gout, which comes from gutta in Latin, meaning a drop and implying secretory disturbances.
Its motor function is much more important than its secretory function and serious stomach troubles are {216} dependent on disturbances of stomach motility.
