Sentences with phrase «ventricle as»

Eventually left sided CHF can occur because of an overload of blood to the left ventricle as more blood is shunted through the right ventricle, leading to more blood flowing through the lungs, leading to more blood flowing back into the left atrium and left ventricle.

On the left is a graphic representation of a normal left ventricle and on the right is an enlarged (concentric hypertrophy) left ventricle as noted in hypertrophic cardiomyopathy.

As previously mentioned, additional tests might be needed to rule out underlying diseases such as systemic hypertension or hyperthyroidism which may cause similar hypertrophy of the left ventricle as HCM.

Using these techniques, scientists have found progressive changes in the HD brain as time goes on, including shrinkage of specific structures, and the growth of the ventricles as the brain tissue around them degenerates.

Not exact matches

A bad viral infection he picked up in China 18 months ago caused what McIlroy explained as the thickening of his left ventricle and «nothing to worry about.»

Pulse rate is an indication of your heart rate as your arteries expand each time the ventricles pump blood out of the heart.

This results in shifts in the structure of the brain as it forms and displacement of cells from where they're supposed to be, including those that line the ventricles and help control fluid flow.

«The ventricles hold fluid, and in abnormal aging the fluid expands into the spaces made as tissue atrophies,» she says.

The findings could have an impact on the tests and measurements that physicians rely on to diagnose and treat two heart conditions: hypertrophic cardiomyopathy, in which the heart muscle becomes abnormally thick, and non-ischemic dilated cardiomyopathy, in which the heart's ability to pump blood decreases as the organ's main pumping chamber, the left ventricle, is enlarged and its muscle thinned.

At Case Western Reserve in Cleveland, Ohio, for instance, psychiatrist Peter Buckley has used Bookstein's methods to show that the ventricles in male schizophrenic brains differ in shape as well as size from those in brains.

Treating the mice with antibodies against CD4 + T - cells four weeks after experimental heart attacks — to deplete that subset of T - cells — prevented the progressive abnormal enlargement of the left ventricle that leads to heart failure, as compared with untreated mice.

Our study suggests otherwise, though, as we found that a certain type of B cell is quite abundant in the ventricles, meninges, and choroid plexus in the brains of young mice.

MRI is superior to other imaging techniques for measuring the interior of the heart, including the right and left ventricles or main chambers of the heart, as well as the heart's muscular tissue.

This feat is possible because the giraffe's heart has evolved to have an unusually large left ventricle, and the species also has blood pressure that is twice as high as other mammals.

A variety of computer - generated colors highlight my hippocampus, lateral ventricles, and other features that Brewer has measured to determine whether I have early signs of diseases such as Alzheimer's.

In this patient, both are malfunctioning: Blood is flowing from the atria to the ventricles, as it should, but it is also leaking back the other way.

Compared to controls, patients with schizophrenia demonstrated smaller bilateral hippocampus, amygdala, thalamus and accumbens volumes as well as intracranial volume, but larger bilateral caudate, putamen, pallidum and lateral ventricle volumes.

Specifically, using new heart - specific genes, they were able to follow in detail the cell movements that lead to the formation of the heart, as well as its divisions into two chambers, the atrium (the chamber that receives blood and passes it to the ventricles) and the ventricle (the pumping chamber).

To displace delicate tissues and folds of the brain — and limit intraoperative damage — a tubular retractor was advanced along the chosen trajectory into the atrium of the lateral ventricle, entering the thalamus at a point identified by the microscope and pointer as superior and lateral to the choroid plexus.

Specifically, the fluid - filled spaces, known as ventricles, in the DISC1 - mutant mini-brains were more numerous and smaller than in controls, meaning that while the expected cells are present in the DISC1 - mutant, they are not in their expected locations.

For instance, as you know, you have an atrium, which is the top part of the heart that collects the blood, and then the ventricle, which will pump it through to your circulation, and we don't know directly whether these cells represent the atrial type of heart cell or the ventricular type of heart cell.

This collision is thought to have carved out a large basin in what we now know as Sputnik Planitia, the enigmatic region that comprises the left «ventricle» of Tombaugh Regio's heart.

When the one of these lincRNA, called megamind, is reduced in zebrafish, the embryos have abnormally shaped heads and enlarged brain ventricles, as indicated by the arrow.

This disorder causes the walls of the left ventricle to thin and weaken so that the heart can't pump blood as well as a healthy heart.

The systolic pressure, which is the first number shown, the 120 in the chart below, is the pressure reading as the heart pumps blood out from the ventricle into the veins.

However, there are certain areas that have a permeable barrier, such as the periventricular nucleus of the hypothalamus, which sits in the 3rd ventricle of the brain.

A thicker ventricle can generate more force for delivery of blood and oxygen as well.

It has taken them two years now to finally be willing to address the weight issues which resulted from the hormonal imbalances as a result perhaps of menopause however as a result of the extreme weight gains the bottom of my lungs collapsed, I have now become diabetic and I have horribly high cholesterol as well as they have found something wrong with my right ventricle in my heart.

In later stages of disease, the left ventricle and veins of the lungs are generally enlarged as well.

Hypertrophy (thickening) of the ventricles can occur secondary to certain other diseases in cats (such as hyperthyroidism and hypertension), but most cases are idiopathic (i.e., have no obvious underlying cause) and are considered primary diseases of the heart itself.

As the name suggests, MMVD affects the mitral valve, which is located on the left side of the heart between the atrium and the ventricle.

Over time, the muscle of one of the major heart chambers (the left ventricle) becomes thickened, as the heart has to work harder to pump the blood when there is high blood pressure.

The heart beat sounds are made as the trap doors slam shut when the ventricles start to beat or contract.

As adults they are found in the right ventricle of the heart, and in the pulmonary artery where they can obstruct blood vasculature.

In cats with HCM, the left atrium grows progressively larger as it tries to send blood into the thickened, non-compliant left ventricle.

As previously mentioned, hypertrophy of the heart muscle affects the ability of the left ventricle to relax properly, and therefore, function appropriately.

Stroke volume is defined as the amount of blood ejected from the left ventricle during systole and is a product of preload (the amount of blood entering the heart), afterload (the amount of resistance in the vasculature to the flow of blood from the heart), and contractility (the heart's ability to contract).

As a result the ventricles do not have time to normally fill and empty — ultimately resulting in heart failure.

Hypertrophic Cardiomyopahy (HCM) is a heart condition in all breeds of cats (and random bred cats) which causes the wall of the heart's left ventricle to thicken progressively as the cat gets older.

As the mitral valve degenerates, the valve no longer fully closes after each pumping action, allowing some blood to flow backwards through them from the ventricle back into the atrium.

When this happens, blood can flow backwards from the ventricle into the atrium when the heart contracts, a phenomenon known as regurgitation.

As blood continues to be regurgitated and flow back into the atrium, the blood volume in both the atrium will increase, causing both the atrium and the ventricle to become enlarged.

It is stored there briefly as it is pumped on into the right ventricle.

We could even visualize the blood swirling around as it formed a pre-clot that would eventually become a thrombus and expelled from the ventricle to large in some artery in the body.

On echocardiography, right heart pathology was mainly observed — including a distended right atrium and ventricle, dilated pulmonary artery and evidence of pulmonary hypertension, as well as many tubular echoic structures in the lumen of the main pulmonary artery, typically identified as adult parasites.

In this case the right atrium and ventricle serves as a low pressure «sink» for severely dilated left atrium.

As heartworms grow in the right ventricle of the heart and its blood vessels, blockage begins to occur.

This video is an Aortic Regurgitation Murmur, defined by Merck Manuals as back flow of blood from the aorta into the left ventricle.

Smaller effusions are first seen over the posterobasal part of the left ventricle.5 The effusion appears as a sonolucent, echo - free void between the parietal pericardium and the epicardium (Figure 3).

So eventually, in cats, the right ventricle muscles often thicken as well increasing the pressure of blood moving to the lungs.