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What factors regulat stroke volume?
Stroke volume is primarily regulated by three factors: preload, afterload, and contractility. Preload refers to the degree of stretch of the cardiac muscle fibers before contraction, influenced by venous return. Afterload is the resistance the heart must overcome to eject blood, primarily determined by arterial pressure and vascular resistance. Contractility refers to the intrinsic strength of the heart muscle's contraction, which can be affected by factors such as sympathetic stimulation and the availability of calcium.
Is stroke volume inversely proportional to the after load?
Yes, stroke volume is inversely proportional to afterload. An increase in afterload, such as from increased vascular resistance, can lead to a decrease in stroke volume due to the additional pressure the heart has to work against to eject blood. Conversely, decreasing afterload can help increase stroke volume.
What is the differenc between a stroke and a anurisim?
Stroke is an embolus or bursting of a vessel, an aneurysm is vascular widening
Examples of disease include hypertension atherosclerosis and stroke?
vascular diseases
What decreases cardiac output without change in heart rate PAWP or SVR Is it preload afterload or contractility?
A change in cardiac output without any change in the heart rate, pulmonary artery wedge pressure (PAWP = equated to preload) or systemic vascular resistance (SVR = afterload) would have to be due to a change in the contractility of the heart. Cardiac output (CO) is roughly equal to stroke volume x heart rate. Stroke volume is related to preload, contractility, and afterload. As you can see, the only variables you have not controlled for is cardiac contractility.
What would stop your gag reflex to stop working?
A cerebral Vascular Accident (stroke)
How bad is vascular dementia?
Vascular dementia is caused when there is a problem in the supply of blood between the heart and the brain. It is because of the clogging of the blood vessel and usually happens after a stroke.
What determines piston stroke?
Both con-rod length and shape of the crankshaft affect piston stroke
What are the risks of hypertension?
The very high risk of hypertension is called a Cerebral Vascular Accident. It is better knowen as a stroke.
Is it healthy for a healthy person to drink beer?
its been known to reduce the risk of cardio vascular disease and stroke
How is the speed of a piston is determined?
The speed of a piston in an engine is determined by the engine's RPM (revolutions per minute) and the stroke length of the piston. The speed can be calculated using the formula: speed = (2 * pi * RPM * stroke length) / 60. Increasing the RPM or stroke length will increase the speed of the piston.
What is another name for stroke?
They are classically called cerebral vascular accidents. There are many types of reasons for a stroke. They are an trauma to the brain, a thrombus or clot, rupturing of a blood vessel, or severe to a part of the brain. hi people
