What causes the lub dub sound of your heartbeat?

The familiar ‘lub-dub’ sound of the heartbeat is caused by the rhythmic closing of the heart valves as blood is pumped in and out of the chambers. A heart murmur is a whooshing, humming or rasping sound between the heartbeat sounds. This is caused by noisy blood flow within the heart.

What happens during lub-dub?

When the valves between the upper chambers (atria) and lower chambers (ventricles) close, a “lub” sound is heard. When the valves in the pulmonary and aortic arteries leaving the heart close, a “dub” sound is heard followed by a longer pauseLub-DubLub-Dub.

Can hypertension cause a heart murmur?

Heart murmurs can be caused by exercise, fever, phases of rapid growth (like adolescence), pregnancy, excessive thyroid hormones (hyperthyroidism) or inadequate red blood cells (anemia). Abnormal heart murmurs can be caused by high blood pressure.

What is the meaning of Mur Mur?

1 : a half-suppressed or muttered complaint : grumbling murmurs of disapproval. 2a : a low indistinct but often continuous sound a murmur of voices the murmur of the waves along the shore.

What pulse is typical for aortic stenosis?

In severe aortic stenosis, the carotid arterial pulse typically has a delayed and plateaued peak, decreased amplitude, and gradual downslope (pulsus parvus et tardus). Other symptoms of aortic stenosis include the following: Pulsus alternans: Can occur in the presence of left ventricular systolic dysfunction.

Can high blood pressure cause bradycardia?

What to do if i read that hypertension/high blood pressure can be a cause of bradycardia. Why is that? Several Reasons: Hypertension (HTN) can resulting in ischemia and abnormality of the conduction system of the heart which may slow heart rate.

How does bradycardia affect the pathogenesis of hypertension in old age?

It is suggested that disturbances of cerebral blood flow associated with bradycardia have a decisive part in the pathogenesis of hypertension in old age. MeSH terms Aged

Is arterial hypertension associated with chronic bradycardia after pacemaker implantation?

Ninety-two patients of advanced age were studied in whom arterial hypertension was associated with chronic bradycardia, the cessation of bradycardia after pacemaker implantation was followed by a significant fall or permanent normalization of the high blood pressure.

Can non-dihydropyridine cause sinus bradycardia?

Non-dihydropyridine calcium-channel blockers are common causes of sinus bradycardia, especially when used together with clonidine. 1, 2 This patient was taking verapamil 180 mg bid, clonidine 0.1 mg tid, and hydralazine 100 mg tid for his hypertension.