The second type (anthrax acutis), without any external swellings, is the one most commonly observed in cattle.
Only the greatest negligence would allow the actually diseased parts to be sold and consumed.
The animal, without having shown any signs of disease, suddenly drops in the pasture and dies in convulsions, or one apparently well at night is found dead in the morning.
After the contraction of the ventricles the heart is again in momentary repose and is being filled with blood, while the valves in the aorta and pulmonary artery close to prevent the return of blood into the ventricles.
The walls of the ventricles are thicker than those of the auricles, and the walls of the left ventricle are much thicker than those of the right.
The auricles may be considered as the reservoirs or receivers of the blood and the ventricles as the pump chambers.
They project into theventricles as masses, varying in size from a pinhead to a hen's egg.
The valves of the heart, situated between the right auricle and ventricle, and left auricle and ventricle, and between the ventricles and large arteries, are represented by curved lines.
The last day they draw off from the body the injected liquor, it has such strength that it dissolves the ventricles and intestines, which come away with the liquid.
The capacity of the ventricles of the heart averages about three and one-half ounces of blood to each ventricle, and the auricle a little less than four ounces, making the total capacity of the heart average about fifteen ounces.
The arteries are cylindrical vessels which serve to convey the blood from both ventricles of the heart to every part of the body.
In acquired hydrocephalus, puncture of the ventricles is sometimes followed by a remarkable improvement in the symptoms, and may even result in apparent cure.
In the acquired form the communication between the ventricles and the sub-arachnoid space, by way of the foramen of Magendie, is obstructed, so that the cerebro-spinal fluid is pent up in the ventricles and gradually distends them.
The ventricles of the brain were filled with a large amount of serum; the brain was somewhat congested.
Galen mentions an injury to a youth in Smyrna, in whom the brain was so seriously wounded that the anterior ventricles were opened; and vet the patient recovered.
The Duc de Berri, heir to the French throne, who was assassinated in 1826, lived several hours with one of his ventricles opened.
Riolan mentions a heart in which bothventricles were absent.
So much may suffice at this time, when it is shown that by the action of the heart the blood is transfused through the ventricles from the veins to the arteries and is distributed by them to all parts of the body.
He noticed that theventricles would pulsate without the auricles, and that if the heart were cut into several pieces "the several parts may still be seen contracting and relaxing.
In the dead body I found the heart and aorta so much gorged and distended with blood that the cavities of the ventricles equalled those of a bullock's heart in size.
It shows too the minute care taken by Harvey not to overstate his case, for he deliberately takes a measurement of the capacity of the ventricles which he knew to be well under the average.
Every animal that has lungs has two ventricles to its heart, one right, the other left, and whenever there is a right there is a left ventricle, but the contrary does not hold good; where there is a left there is not always a right ventricle.
Both ventricles also have the same office to perform, whence their equality of constitution.
During its contraction the heart becomes erect, hard, and diminished in size, so that the ventricles become smaller and are so made more apt to expel their charge of blood.
He shows that the two auricles move synchronously and that the two ventricles also contract at the same time.
The valves between the ventricles and auricles are now well developed, and it is about this time that the division of the truncus arteriosus into the aorta and pulmonary artery becomes visible from the exterior.
The walls of the hemispheres become much thickened, but the lateralventricles persist.
In the embryo Man, the Rabbit, and other Mammals the division of the ventricles is made apparent externally by a deep cleft, which, though evanescent in these forms, is permanent in the Dugong.
The corpus striatum projects upwards into each lateral ventricle, giving to it a somewhat semilunar form, the two horns of which constitute the permanent anterior and descending cornua of the lateral ventricles (fig.
At the time when the septum is first formed, the opening of the truncus arteriosus into the ventricles is narrow or slit-like, apparently in order to prevent the flow of the blood back into the heart.
The epithelium (ciliated in the young animal) lining the canalis centralis of the spinal cord, together with that lining the ventricles of the brain, is the undifferentiated remnant of the primitive epiblast.
The apex of the ventricles becomes more and more pointed.
In Man there is a closed cavity left in the septum known as the fifth ventricle, which has however no communication with the true ventricles of the brain.
After the contraction of the ventricles comes a period of rest, or relaxation, about equal in time to the period of contraction of both the auricles and the ventricles.
The walls of the ventricles are much thicker and stronger than those of the auricles, while the walls of the left ventricle are two or three times thicker than those of the right.
The auricles on each side communicate with the ventricles below; but after birth there is no communication between the cavities on the opposite sides of the heart.
Then while theventricles are resting and filling, the stretched arteries press upon the blood to keep it flowing into the capillaries.
The latter purpose is accomplished as follows: Contraction of theventricles fills the arteries overfull, causing them to swell out and make room for the excess of blood.
It keeps the arteries from bursting when the blood is forced into them from the ventricles, and it is a means of supplying pressure to the blood while the ventricles are in a condition of relaxation.
The heart is aided in its work by the elasticity of the arteries, which keeps the blood under pressure while the ventricles are in a state of relaxation.
The ventricles keep a pressure on the blood which is sufficient to force it through all the blood tubes and back to the auricles.
The ventricles contained between one and two ounces of water; the communication between them was very large.
The ventricles contained about double the usual quantity of water; their parts were all remarkably well defined.
Vesalius (De humani corporis fabrica, 1542) ascertained that the septum between the right and left ventriclesis complete, though he could not bring himself to deny the invisible pores which Galen's system demanded.
During the first, the two ventricles contract; during the second the two auricles do so.
Both these circulations are going on constantly, as the two auricles contract, and the two ventricles expand simultaneously, and vice versa.
As the auricles do not need to contract with much force simply to empty their contents into the ventriclesbelow them, there is no demand for any special contrivance to prevent the blood from setting back the wrong way.
But, when the strong ventricles contract, especially the left one, which must drive the blood to the extremities, some arrangement is necessary to prevent it from returning into the auricle.
There were slight opacities in many parts of the tunica arachnoidea; in the ventricles about four ounces of water were contained--some large hyatids were discovered on the plexus choroides of the right side.
The ventricles were of a natural capacity, and did not contain any fluid.
The lateralventricles were considerably enlarged and filled with water--four ounces were collected.
There were some large hydatids on the plexus choroides: in the ventricles about a tea spoonful of water was observed: the consistence of the brain was particularly firm, but it could not be called elastic.
The pia mater was considerably inflamed; there was not any water either in the ventricles or between the membranes.
The lateral ventricles were but little distended, and did not contain much water.
For while the lungs are yet in a state of inaction, Nature uses the two ventricles of the heart as if they formed but one for the transmission of the blood.
In some cases of hydrocephalus pints of serum are effused, distending the brain and head enormously, and in many cases of insanity the ventricles and membranes of the brain are distended with serum.
Or the heart wall may by exhaustion become thinner, making the ventricles much too large, and unable to send on the current.
While the ventricles are contracting, the auricles begin to relax, and after the ventricles contract they also relax.
Fleshy projections in the ventricles of the heart.
The openings from the ventricles into these vessels are guarded by the semilunar valves.
The precise cause of the first sound is still doubtful, but it is made at the moment the ventricles contract.
The second sound is, without doubt, caused by the sudden closure of the semilunar valves of the pulmonary artery and the aorta, at the moment when the contraction of the ventricles is completed.
Now the time occupied from the instant the auricles begin to contract until after the contraction of the ventricles and the pause, is less than a second.
The heart muscle, endeavoring to compensate for the over-exertion, may become much thickened, making the ventricles smaller, and so fail to do its duty in properly pumping forward the blood which rushes in from the auricle.
Now comes a pause, or rest, after which the auricles and ventricles contract again in the same order as before, and their contractions are followed by the same pause as before.
The ventricles of his said brain, The stomach, like a belt.
Consequently let all manner of perturbation abdicate the ventricles of your brains, if anyone has invaded them while they were contemplating what is transacted by my domestic ministers.
The block may be partial, when two to nine auricular beats occur to every one of the ventricle, up to absolute complete block when the auricles and ventricles beat independently of one another.
The situation and size of this bundle has been thus described in man by Retzer: "When viewed from the left side, the bundle lies just above the muscular septum of the ventricles and below the membranous septum.
We may define heart block as the condition in which the auricles and ventricles beat independently of each other.
It has been shown that hearts at the time of death at times enter a state of fibrillation of the ventricles and that cases of sudden death may be due to this condition.
Briefly, the auriculoventricular bundle runs posteriorly in the septum of the ventricles about 10 mm.
This small fraction of venous blood, charged still with the natural spirits derived from the liver, passed through minute channels in the septum between the ventricles and entered the left chamber.
He attained to some knowledge of the ventricles of the brain, the cranial and spinal nerves, the nerves of the heart, and the coats of the eye.
But he thought it was only a very small portion of the blood which passes to the right side of the heart in this way; the rest of the blood, he thought, passed through the partition which separates the two ventricles of the heart.
In the spinal region it is a small, simple canal of uniform calibre, which at the front end dilates to form the ventricles of the region of the brain.
The ventricles of the brain were the old cephalic stomach, and the canal of the spinal cord the long straight intestine which led originally to the anus, and still in the vertebrate embryo opens out into the anus.
It was continuous with and led into the ventricles of the brain, and the whole thing became clear.
A true idea of the depth of the larynx is not obtained with the mirror, and a view of the ventricles is rarely had.
The ventricles are not visible by mirror laryngoscopy, but are readily exposed in their depths by lifting the respective ventricular bands with the tip of the laryngoscope.
An accumulation of liquid within the cavity of the cranium, especially within the ventricles of the brain; dropsy of the brain.
In most amphibians and reptiles, the separation of the auricles is partial or complete, and in reptiles the ventricles also are separated more or less completely.
The ventricles contained no water; on the plexus choroides were some vesicles of the size of coriander-seeds, filled with a yellow fluid.
There were slight opacities in many parts of the tunica arachnoides; in the ventricles about four ounces of water were contained--some large hydatids were discovered on the plexus choroides of the right side.
In theventricles of the brain was found a considerable quantity of limpid fluid, distinctly impregnated with gin, both to the sense of smell and taste, and even to the test of inflammability.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "ventricles" in a variety of sentences. We hope that you will now be able to make sentences using this word.
