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Your question can be interpreted in different ways.
Mechanically, increasing either heart rate or ejection volume will increase CO.
Physiologically, fever, exertion, anxiety, etc, will increase it.
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What are the two factors of cardiac output?
The stroke volume and the heart rate. The stroke volume is the volume of your blood and heart rate is how many beats there are per minute.
Arterial blood pressure increases in response to?
Two of the main factors that influence blood pressure is cardiac output and blood volume. Another factor is the peripheral resistance.
What are the two components of cardiac output?
Cardiac output is the actual amount of blood being pumped by the heart. The stroke volume of the heart determine the amount of work done by the heart.
What two fitness parameters are included in the calculation of cardiac output?
pulse and blood pressure
What are the two main methods controlling the power output from the rotors on a wind turbine?
nithing
What effects cardiac output during the first few stages of exercise?
Cardiac Output is computed as your heart rate times your stroke volume (volume of blood ejected from the heart each beat). The main contributor when exercising is an acceleration in heart rate. Stroke volume can be increased, but only by prolonged aerobic training. To answer your Q, HR as has the main effect on cardiac output during the first stages of exercise.**The first few stages of cardiac exercise will 'affect' cardiac output, not 'effect' it. If you don't know the difference between the two, you should not be asking a question such as this...
What are the two factors that determine the light that falls on the surface of the earth?
The Sun's output, and the absorption by the Earth's atmosphere.
What are the two kinds of involuntary muscles?
Which two types of muscles are involuntary?
How much blood in gallons does a healthy adult heart pump in 120 seconds?
2 every 60 seconds
What are the other two names for a cardiac ultrasound?
The other two names that refer to a cardiac ultrasound include Echocardiography and Cardiac Echo. A Cardiac Echo is used in situations where physicians need to diagnose a heart condition in a patient.
How does exercise affect cardiac output?
The human heart is an involuntary muscle that consists of four chambers: two atria and two ventricles. Its function is to transport oxygen-rich blood throughout the body via the circulatory system, nourishing and energizing living cells. Like any other muscle, the heart can be strengthened with exercise or weakened by a lack of physical activity.Cardiac output is a function of stroke volume and heart rate. An individual's cardiac output can be determined by measuring the total volume of blood that is pumped by a heart ventricle (stroke volume) each time the heart beats (heart rate). The stroke volume multiplied by the heart rate equals cardiac output.A simple mathematical equation is used to calculate the cardiac output of the heart, measured in milliliters per minute.Cardiac Output in mL/min = heart rate (beats/min) X stroke volume (mL/beat)An increase in stroke volume or heart rate of any intensity increases cardiac output.
Does decreasing sympathetic stimulation decrease cardiac output?
Not necessarily. The bodies autonomous nervous system is composed of two types. Sympathetic, and parasympathetic. Also known as the fight or flight system. Sympathetic stimulation causes increased: Blood pressure, heart rate, cardiac output, faster nervous response, and heightened awareness. Stimulation of the parasympathetic nervous system causes the opposite. A heart rate that is too fast has decreased cardiac output because, to put it simply, he chambers of the heart don't have time to refill with blood to full capacity before being contracted again, thus reducing the amount of oxygenated blood being pumped with each contraction. Slowing down the sympathetic response will slow the heart rate enough to allow the chambers to fill adequately before contracting again, increasing cardiac output. In a normally beating heart, however, decreasing the sympathetic stimulation by means of a parasympathomimetic drug (which mimics the parasympathetic nervous system, will decrease cardiac output. The answer to this question is dependent on the situation.
