Heart Valve Question! - please type your answers or write very clearly! 1. What
ID: 3521613 • Letter: H
Question
Heart Valve Question! - please type your answers or write very clearly!
1. What side of the heart is the pulmonary valve on? what about the aortic valve?
2. What are the main differences between between Left Sided and Right Sided heart failure?
3.Explain to me this Aortic Valves and Polmunary valves are stenosed during systole while Mitral and Tricuspid valves are regurgatant during systole? - what is happing to the valves? and why are the suppoused to be open/closed during the different contraction! TY
Explanation / Answer
Solutions
1.
The pulmonary valve and the aortic valve are two semi lunar valves of the heart. The pulmonary valve is located between the right ventricle and the pulmonary artery. The aortic valve is located in between the left ventricle and the aorta. The pulmonary and aortic valves open into the ventricular systole.
2.
Left-sided heart failure
Right-sided heart failure
The left side of the heart is responsible for bringing oxygen-rich blood from the lungs via the left atrium and into the left ventricle, to be pumped then out into body.
The left side of the heart is responsible for bringing circulated blood from the body and sending it to the lungs for oxygenation.
When the left side fails, the heart is damaged and cannot pump blood efficiently. This leads to build-up of fluids in the lungs, causing shortness of breath
The right side becomes weaker in response to left sided failure. Blood is not efficiently re-oxygenated, and the right side muscles come under a lot of stress to perform. There is fluid accumulation and swelling in parts of the body.
3.
Stenosis is a condition where the valves close and become narrow. Regurgitation is a condition where the valves are unable to close properly, and passive back flow of the blood can happen.
During systole, the heart refills with blood. For this to happen, the ventricles have to contract and pump blood to the body and lungs. The aortic and pulmonary valves have to remain closed, while Mitral and Tricuspid valves have to remain open, so that a pressure gradient between the ventricle and the atrium is preserved during late ventricular diastole.
Left-sided heart failure
Right-sided heart failure
The left side of the heart is responsible for bringing oxygen-rich blood from the lungs via the left atrium and into the left ventricle, to be pumped then out into body.
The left side of the heart is responsible for bringing circulated blood from the body and sending it to the lungs for oxygenation.
When the left side fails, the heart is damaged and cannot pump blood efficiently. This leads to build-up of fluids in the lungs, causing shortness of breath
The right side becomes weaker in response to left sided failure. Blood is not efficiently re-oxygenated, and the right side muscles come under a lot of stress to perform. There is fluid accumulation and swelling in parts of the body.
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