Ventricles in a sentence

A main factor is how long it takes the ventricles to fill—if the ventricles contract faster, then there is less time to fill and the preload will be less.

The atria and ventricles work in concert, so in systole when the ventricles are contracting, the atria are relaxed and collecting blood.

When patients get rapid heartbeats from the bottom chamber of the heart, or the ventricles, they have ventricular tachycardia which can often be dangerous.

Asked to speculate on what a CT scan would have shown, Dr Buxton, consultant neurosurgeon at the Walton Centre, said that it would have most likely revealed enlarged ventricles, which would have prompted the A&E to refer Debbie to the Walton Centre.

They did find some newly-created neurons in different bits of the brain called ventricles, but said other regions have yet to be explored to determine whether neurogenesis happens there or not.

Along the inner surface of both ventricles, the ventricular wall remains thin, and a choroid plexus develops, releasing CSF.

A random and varying rhythm is classified as atrial or ventricular fibrillation depending if the electrical activity originates in the atria or the ventricles.sfn Abnormal conduction can cause a delay or unusual order of contraction of the heart muscle.

As the atria begin to fill, the pressure will rise so that the blood will move from the atria into the ventricles.

As the ventricles relax, the aortic and pulmonary valves will close in response to decreased pressure.sfn Cardiac output main The x-axis reflects time with a recording of the heart sounds.

At the beginning of the cardiac cycle, in early diastole, both the atria and ventricles are relaxed.

Diastole is when the atria or ventricles relax and fill with blood.

Diastolic pressure is minimum pressure in the arteries, which occurs near the beginning of the cardiac cycle when the ventricles are filled with blood.

Galen believed that blood passed between the ventricles by means of invisible pores.

Galen believed the arterial blood was created by venous blood passing from the left ventricle to the right through 'pores' between the ventricles.

He created models of the cerebral ventricles with the use of melted wax and constructed a glass aorta to observe the circulation of blood through the aortic valve by using water and grass seed to watch flow patterns.

He made the observations that humours were not located in cerebral spaces or ventricles.

He noticed that the two ventricles move together almost simultaneously and not independently like had been thought previously by his predecessors.

However, there is a concern ; Ventricular fibrillation (vfib) : Fibrillation of the ventricles is a life-threatening arrhythmia and should be treated by defibrillation and is a medical emergency.

Hydrocephalus Hydrocephalus is an abnormal accumulation of cerebrospinal fluid (CSF) in the ventricles of the brain and can be caused by an impaired flow of cerebrospinal fluid, reabsorption, or excessive production of CSF.

In late diastole the atria contract, pumping more blood into the ventricles.