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Bleeding, technically known as hemorrhaging or haemorrhaging (see American and British spelling differences) is the loss of blood or blood escape from the circulatory system.[1] Bleeding can occur internally, where blood leaks from blood vessels inside the body or externally, either through a natural opening such as the vagina, mouth, nose, ear or anus, or through a break in the skin. The complete loss of blood is referred to as exsanguination,[2] and desanguination is a massive blood loss. Typically, a healthy person can endure a loss of 10-15% of the total blood volume without serious medical difficulties, and blood donation typically takes 8-10% of the donor's blood volume
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What do arteries close to the heart need to be able to compensate for?
Pressure changes
What factors influences resistance to blood flow in the arteries?
resistance occurs as the blood flows away from heart through the vessels in the peripheral systemic circulation a term known as peripheral resistance. Viscosity of the blood (thickness) ,vessel length (distance) and vessel diameter (blood vessel radius) are three factors
What is slightly enlarge heart?
The heart enlarges to compensate for conditions in the body that affect heart flow and functions of the heart. It would be more telling to know which side of the heart is enlarged or if the whole heart.
What differences would you expect to see in a diseased heart with high peripherial resistance as compared to the healthy heart of an athlete?
A diseased heart (as a result of high peripheral resistance or hypertension) would likely be representative of hypertrophic cardiomyopathy. In this pathologic condition, the heart has lost functional cardiac muculature and contains fibrous tissue in its place. Furthermore, the heart becomes dilated and ceases to perform adequately as a pump. In contrast, the healthy heart, especially the one of an athelete, is comprised of robust cardiac muscle tissue. In this healthy state, the heart can work easily and effortlessly to pump more than the usual volume of blood, when called upon.
Are headaches associated with peripheral artery disease?
No. Peripheral artery disease refers to vascular disease involving the peripheral circulation, which is distant from the heart (i.e., arms and legs), not the head, which would be considered central circulation. "HealthYes! Medical Advisory Board" Ideally to get more information about any potential risk you may want to consider health screening and talking to your primary health physician. I found out that there is preventive screening for peripheral artery disease.
Emphysema damages the tissues of the lungs and increases peripheral resistance forcing the heart to increase its contraction strength to compensate. In which of the following would changes first be de?
In emphysema, the initial changes would first be detected in the pulmonary circulation, as the damaged lung tissues lead to increased resistance in the pulmonary arteries. This increased resistance forces the right ventricle of the heart to work harder to pump blood through the lungs, leading to right ventricular hypertrophy and potential heart failure. Consequently, the most immediate effects would manifest in the right heart and pulmonary circulation before impacting systemic circulation.
What do arteries close to the heart need to be able to compensate for?
Pressure changes
What is the relationship between peripheral resistance and blood pressure?
Systolic BP is a measure of blood pressure while the heart is pumping; diastolic BP is a measure of blood pressure while the heart is not pumping. BP is the pressure of the blood on the walls of the blood vessels.
Difference between a diseased heart with high peripheral resistance and the healthy heart of an athlete?
An athletes heart is in a healthy state and is comprised of robust muscle tissue . It can easily pump blood to the entire body without any effort . However high peripheral resistance is a compensatory mechanism of a failing heart in which vital organs sustain blood pressure in order to survive.
Why you use beta blocker in heart failure?
Beta blockers act to reduce the workload on the heart by reducing the heart rate and relaxing the aterial walls, decreasing peripheral resistance.
How the human heart could compensate for flow rate changes to maintain blood pressure?
The human heart could compensate for flow rate changes to maintain blood pressure by setting the pace at which it beats and maintains blood flow. When a heart rate increases, blood pressure will rise, and when a heart rate decreases, blood pressure will drop.
Is the cardiac output equal to the pulse rate times peripheral resistance?
No, cardiac output is not equal to pulse rate times peripheral resistance. Cardiac output is the product of heart rate (pulse rate) and stroke volume, which is the amount of blood pumped by the heart with each beat. Peripheral resistance refers to the resistance blood encounters as it flows through the blood vessels, which influences blood pressure but is not directly part of the equation for cardiac output. Thus, the relationship between these variables is more complex and involves additional factors.
What factors influences resistance to blood flow in the arteries?
resistance occurs as the blood flows away from heart through the vessels in the peripheral systemic circulation a term known as peripheral resistance. Viscosity of the blood (thickness) ,vessel length (distance) and vessel diameter (blood vessel radius) are three factors
Which Site is the major determinant of peripheral resistance?
Arterioles are the major determinant of peripheral resistance in the cardiovascular system. Their small diameter and ability to constrict or dilate play a key role in regulating blood flow and pressure in different parts of the body.
How will blood peripheral resistance change as a result of increased hematocrit?
An increased hematocrit indicates a higher ratio of RBC's in the blood. Any increase in cellular elements, whether WBC's, RBC's or platelets, will act to essentially mechanically "thicken" the blood viscosity, sort of like using a heavier grade oil in your car. Increased blood viscosity will increase peripheral resistance, as it becomes harder for the heart to circulate the thicker blood, especially in the capillaries.
Why don't young people get heart attacks?
They have yet to develop physiological changes that cause diseases and disorders that compromise the heart to the point of heart attack. Theie bodies are able to compensate far more than older people.
How does the relationship between blood pressure, cardiac output, and peripheral resistance impact overall cardiovascular health?
The relationship between blood pressure, cardiac output, and peripheral resistance is crucial for overall cardiovascular health. Blood pressure is the force of blood against the walls of the arteries, which is influenced by cardiac output (the amount of blood pumped by the heart) and peripheral resistance (the resistance to blood flow in the blood vessels). When these factors are balanced, it helps maintain healthy blood pressure levels and proper blood flow throughout the body, supporting overall cardiovascular health. Imbalances in these factors can lead to conditions like hypertension or heart failure, which can negatively impact cardiovascular health.
