Trace the blood from the right ventricle to the alveoli and back again to the left auricle.
By the action of currents and eddies and by the rapid diffusion of gas particles, the air from the outside mixes with that in the alveoli and comes in contact with the membranous walls.
By this arrangement the air within the alveoli is brought very near a large surface of blood, and the exchange of gases between the air and the blood is made possible.
This starts at the right ventricle and by its branches conveys blood to the capillaries surrounding the alveoli in all parts of the lungs.
During each inspiration the air from the outside fills the entire system of bronchial tubes, but the alveoli are largely filled, at the same time, by the air which the last expiratory effort has left in the passages.
It is at the alveoli that the oxygen passes from the air into the blood, and the carbon dioxide passes from the blood into the air.
The alveoli of the four incisors are of normal width and depth, this signifying that these teeth remained in their places until the end of life.
In such cases the teeth often fall out, the breath becomes fetid, and if the patient eats hot food, the empty alveoli as well as the cheeks are painful.
As there is no pivot in the whole appliance, and as the alveoli are not obliterated, there can be no doubt that the appliance was simply destined to prevent the loss of the two right incisors by keeping them steady.
Relative to the extraction of teeth, he says that, in order to be able to carry out this most important operation, an exact anatomical knowledge of the alveoli and of the teeth themselves is required.
Fauchard gives an excellent description of the alveoli and of the roots of the teeth; he alludes to the varieties which these latter may present, and to the importance of the same from the point of view of extraction.
When the teeth situated below the antrum have fallen out, or have been extracted some time, and their alveoli are in consequence obliterated, it will be better to have recourse to Lamorier’s method.
He combated the erroneous idea that the teeth were formed in the alveoli shortly before their eruption.
According to Carlo Musitano, the real cause of toothache consists in the irritant action of saline or acid particles on the extremely thin membrane that lines the alveoli or on the exquisitely sensitive nerves of the teeth.
On the left the alveoli are unfolded to show their general arrangement.
Small duct of gland subdividing into branches; e, f and g, terminal tubular alveoli of gland.
It occurs as the covering epithelium of the alveoli of the lung, of the kidney glomerules and capsule, &c.
Note the color of the lung substance, and whether the alveoli contain blood, serum, or inflammatory products.
The alveoli were filled with homogeneous masses, containing but few degenerated epithelial cells and leucocytes.
This variety is found in separate lobules or alveoli on the inner border of the bodies.
Externally there is present a fibrous capsule, which sends in the septa, imperfectly dividing up the body into a series of alveoli or lobes.
These alveoli are far more distinct in some parts of the bodies than in others.
The agent may be absorbed by any part of the respiratory tract from the mucosa of the nose and mouth to the alveoli of the lungs.
The cytoplasm within is distinctly alveolated, and frequently contains tubular alveoli running along the length of the animal.
This collapse occurs because each of the gases present in the alveoli (oxygen, water vapor, and carbon dioxide) is subject to prompt and complete absorption from the alveoli by the blood.
The alveoli are normally stabilized against collapse by the presence of inert and relatively insoluble gas (nitrogen) and an internal coating of lipoprotein substances with low surface tension.
Atelectasis and Pulmonary Edema Localized or diffuse collapse of alveoli in the lungs may, if the condition persists, lead to arterial hypoxia which may be extremely undesirable under the stresses of space flight.
The alveoli are probably unstable when pure oxygen is breathed; they tend to collapse if there is blockage of the airways, especially at low pressures.
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.
In another specimen, twenty-one days after heat, the milk glands were still more advanced, with distended alveoli and enlarged ducts.
Severe pain is experienced on touching the teeth whose alveoli are affected; they project and become loose; purulent matter is secreted, and oozes out between the loosened teeth and diseased gums.
There were no other alveoli, nor was there any intimation of the formation of alveoli in the shape of the jaw, which resembled very much the usual senile form of retrograde metamorphosis.
Histologically, medullary cancer is composed of a scanty stroma of connective tissue enclosing an abundance of cancerous alveoli filled with polyhedrical or cylindrical epithelial cells.
Cancer of the stomach is characterized anatomically by the formation in this organ of a new growth, composed of a connective-tissue stroma so arranged as to enclose alveoli or spaces containing cells resembling epithelial cells.
He thinks, however, that this proportion would be greatly modified if in the autopsies of young children the alveoli were opened to examine the embryonic teeth.
Not infrequently the alveoli are distended with mucus secreted by the lining epithelium, and then the tumor presents in whole or in part appearances similar to colloid cancer.
The dense consistence of scirrhous cancer is due to the predominance of the fibrous stroma, the cancerous alveoli being relatively small in size and few in number.
They are present only when the cancerous alveoli actually communicate with the peritoneal cavity.
Besides, the periosteal proliferation around the alveoli is excessive, sometimes so much so as not only to crowd the teeth into irregular positions, but even to absorb and annihilate alveolar processes in the course of the morbid changes.
Long continuance may result in partial or complete disruption of the teeth, or in local gangrene, or even in necrosis of the alveoli (Damaschino).
Actissa differs from the following skeletonless genera in the absence of all alveoli; it has neither intracapsular alveoli (like Thalassolampe) nor extracapsular alveoli (like Thalassicolla).
Its unicellular body exhibits neither the extracapsular alveoli of Thalassicolla, nor the intracapsular alveoli of Thalassolampe, and shows all essential characters of the Radiolarian type in its most simple form (Pl.
Thalassicollida# with simple spherical nucleus, without any alveoli (either within or outside the central capsule).
From the anteriormost inferior border of the foramen magnum to a line connecting the posteriormost margins of the alveoli of the first upper incisors.
In young females the width of the braincase is more than the distance between the alveoli of the incisor and first molar.
The body, moreover, is frequently strengthened by more or less marked overgrowths of bone lingually below the alveoli and above the mylohyoid ridge.
The writer would regard these bulgings as bone buttresses built up by nature to resist the excessive strain thrown upon the alveoli of the molar teeth.
The structure of cancer suggested an organ, as it consisted of collections of cells resembling epithelium, within spaces or alveoliwhose walls were formed of connective tissue.
The cells composing the columns and filling the alveoli vary with the character of the epithelium in which the cancer originates.
The lympho-sarcoma presents a structure similar to that of lymph-follicular tissue, and the alveolar sarcoma an arrangement of cells in alveoli resembling that seen in cancers.
The cells are small and closely packed together in alveoli or in reticulated columns; cell nests are rare.
If the alveoli are small and the intervening stroma is abundant and composed of dense fibrous tissue, the tumour is hard, and is known as a scirrhous cancer--a form which is most frequently met with in the breast.
If the alveoli are large and the intervening stroma is scanty and delicate, the tumour is soft and brain-like, and is described as a medullary or encephaloid cancer.
The incisors are not preserved, but their alveoli indicate that they were much crowded, the outside one being placed almost directly in front of the canine, and the middle one pushed back considerably out of position.
The alveoli of all the other teeth are present and in a good state of preservation.
In the adult skull from Bering Island, which has been mounted and placed on exhibition, the teeth are fixed in the alveoli so that their entire length and the peculiarities of the basal portion can not be determined.
The teeth of the Annisquam specimen barely projected above the alveoli of the jaws and are sharply mucronate.
As the alveoli of the jaw are, however, filled with a network of bone, the teeth can not be inserted in them.
From the anteriormost border of the foramen magnum to a line connecting the posterior margins of the alveoli of the first upper incisors.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "alveoli" in a variety of sentences. We hope that you will now be able to make sentences using this word.
