atrium

an opening in the atrial septum, or dividing wall between the two upper chambers of the heart known as the right and left atria.

In some patients, AF seems to be triggered by electrically active pulmonary vein foci. These foci can trigger the atria to fibrillate .

The most prominent groove is the coronary sulcus that encircles the heart and marks the division between the atria and ventricles.

During each normal heartbeat, the muscle cells in the upper chambers of the heart, the atria (AY-tree-uh), contract.

An atrial septal defect is unlikely to produce a loud murmur because of the minimal pressure differential between the atria.

The interior of the heart is divided into four chambers: upper right and left atria and lower right and left ventricles.

After conducting research among staff, the bank built the tower around garden atria that let in natural light.

Within the building, air movement can be directed by roof form, thermal flues, and atria controlled by louvred openings.

Atria have become much more common as integral components of commercial building designs over the last twenty years.

First, the two upper chambers of the heart, called atria (AY-tree-uh), contract.

The catheter is quickly pulled back through the hole, into the right atrium, enlarging the hole, allowing blood to mix between the atria.

Atrial septal defect is a hole in the division between the heart atria.

The study of its electrophysiological mechanism and molecular etiology supplies plenty of academic basis to therapy of atria fibrillation.

In a healthy heart, electrically conductive muscle cells fire for each contraction of the atria and ventricles [see illustration].

Healthy valves open and close in coordination with the pumping action of your heart's atria and ventricles.

These smaller atria admit sunlight into the main atrium at various times throughout the day.

In HE stain, myocardial hypertrophy, severe myolysis and extensive fibrosis in the interstitial space of the atria were found in AF group.

The right coronary and left circumflex are especially prone to artifact due to their proximity to the right and left atria, respectively.

Catheter ablation of the AV junction permanently interrupts conduction from the atria to the ventricles.

The scar tissue stops atrial fibrillation by interfering with chaotic electrical signals that cause the atria to contract irregularly.

Secondary atria cut through the legs of the L, or wings, which form the south and west sides of the headquarters.

Living spaces surround atria with sports elements that open up the towers.

The atria contract and empty simultaneously into the ventricles, which also contract in unison.

Man has only one heart, but there are two atria aside, so they should think of others as well as themselves.

This process continues over and over as the atria refill with blood and other electrical signals come from the SA node.

The tower's two bases straddle Edgar Street and then spiral up, joining in the middle before splitting off into two atria.

This action pushes blood through the open valves from the atria into both ventricles.

The combined contraction of the atria and ventricles is a heartbeat.

The papillary muscles contract during systole to prevent regurgitation of blood into the atria.

Effect of alpha1-adrenoceptor subtypes on beta-adrenoceptor mediated positive inotropic response in rat left atria.

The ventricles were not dilated in two, and the atria were enlarged in all.

Similar observations were made in trabeculae from human atria, normal rabbit ventricles, and isolated rabbit ventricular myocytes.

As a result, the ventricles cannot relax normally and expand to fill with blood, which causes the atria to become enlarged.

The ablations disrupt the atria's abnormal electrical activity and normalize heart rhythm.

Both atria are thin walled muscular chambers.

Blood flow stasis may cause thrombi to form in the quivering atria.

A ma powerful has only one heart- there are two atria.

atrial fibrillation: fibrillation of the muscles of the atria of the heart

Improvement on Study of Electrophysiology Mechanism and Molecular Etiology of Atria Fibrillation

Characteristics of electrophysiological connection between atria and myocardial sleeves in patients with paroxysmal atrial fibrillation

Characteristics of electrical connections between atria and pulmonary veins in patients with paroxysmal atrial fibrillation

Atria remodeling after pediatric heart transplantation evaluated by echocardiography

Study on expression of extracellular signal-regulated kinase and angiotensin-converting enzyme in human atria during atrial fibrillation

Activation of extracellular-signal regulated kinase and protein phosphatases in human atria during atrial fibrillation

Effect of Captopril on tachycardia-induced electrical remodeling of rabbit atria and its mechanism

The relationship between atrial fibrosis and matrix metalloproteinases in human atria with atrial fibrillation

Involvement of potassium channels in negative chronotropic action induced by resveratrol on isolated atria;

Clinical application of min-diameter atria steel-wire in modified percutaneous balloon mitral valvuloplasty

Biologic effects of different fragments derived from pro-atria natriuretic peptide and their interactions

Clinical features of acute myocardial infarction complicated with atria-ventricular block in elderly

The hemodynamic evolvement of left atria in patients with atrial fibrillation before and after cardioversion

An Analysis on the Change of Dimensions of the Left Atria in the Patients with Paroxysmal Atrial Fibrillation

Structural Changes of Atria and Its Mechanisms in Atrial Fibrillation

Study on expression of mineralocorticoid receptor in human atria during atrial fibrillation

Clinical value of multiplane transesophageal echocardiography in diagnosing left atria thrombi in patients with rheumatic heart disease

Performance-based Design of Smoke Management System in an Atria

Effects of Bisoprolol on patients with congestive heart failure and rapid atria fibrillations

Effects of isoproterenol on atrial natriuretic peptide secretion in rabbit atria

A Clinical Analysis of Cerebral Infarction with Atria fibrillation

Effects of dilatrend on heart rate response to exercise in patients with coronary heart disease and atria fibrillations

Change of gene expression of angiotensinogen and renninin human atria during atrial fibrillation

Study on the Relationships between L-type Calcium Channel and Cardiomyocyte Structure of Right Atria in Atrial Fibrillation

Calcium Antagonistic Effect of Xanthotoxol on Isolated Guinea Pig Atria

The atria are separated from each other by the thin, muscular interatrial septum;

Clinical observation of central venous catheterization based on intra-atria cardiogram

Discussion on Smoke Control Stair Wells and Atria in High-rise Buildings

Ultrasonic experimental research on pig's left atria volume

Drug management for tacho-atria fibrillation

Guide for Smoke Management Systems in Malls, Atria, and Large Areas

P waves signal depolarization of the atria ? QRS

Comparison of effects of 7-chloro-benzyltetrahydropalmatine and quinidine on isolated left atria of guinea pigs and aortic ring of rats

Smoke Control Systems in Atria, Covered Malls, and Large Areas

Performance-based design of smoke control system in atria

Dysrhythmias Originating in the Atria

Design and Research of Atria Smoke-protection System of High Buildings

Tetrandrine prevent connexin 40 degradation in the rabbit atria by rapid pacing

Effects of berberine on left atria and trachea in guinea pigs

Smoke movement and smoke management in atria

Effects of ethanol on isolated guinea pig atria

Thermal condition and air flow issues in atria

Classification of Atria and Measures for Their Fire Protection

Peri - operative nursing care of patients with myxoma of atria sinistrum