Identify And Explain The Difference Between Left And Right Mitral Valves

The mitral valve is located on the left side of the heart between the left atrium and left ventricle. The purpose of the mitral valve is to form a seal between these two chambers of the heart to prevent the back flow of blood. When blood enters the left side of the heart, it is oxygenated and enters through the pulmonary veins. The blood then travels through the left atrium; the bicuspid (mitral) valve then opens to let the blood flow down to the left ventricle. The left ventricle contracts, causing the mitral valve to close (preventing the backflow of blood).When the left ventricle contracts it is pumping the blood out to the remainder of the body. (Jenkins, 2007)

Blood then travels out toward the lungs for oxygenation via the pulmonary artery and returns to the heart through the pulmonary veins entering the left atrium. It is pumped through the mitral valve into the left ventricle to exit the aortic valve to the circulation via the aorta. The questions asked in the lab packet directly related to the anatomy and physiology of the heart which allowed to understand how the heart works as a

Both atria simultaneously fill with blood. Then the bicuspid and the tricuspid valves open, also simultaneously, to allow blood to flow into the ventricles. As the blood collects in the ventricles, they contract, ejecting blood into the lungs and the body. Meanwhile, the atria relax and again fill with blood.

On the right side of your heart, it is collecting and pumping blood to the lungs through the pulmonary arteries, in which your lungs are refreshing the blood with a new supply of oxygen, and removing any waste products (Heart Disease- Mayo Clinic). On the left side of your heart, it pumps more blood throughout the aorta ( the main artery), to supply tissues throughout the body with oxygen and nutrients( Heart Disease- Mayo Clinic).

The heart is divided into four chambers. The top two chambers are the atria and the bottom two chambers are the ventricles. Two of the chambers, together make up the right heart and pump blood to your lungs, where it picks up oxygen. Blood that is carrying oxygen then travels to the two chambers on the left side of your heart, which then pumps the blood to the rest of your body. The ventricles (the bottom chambers) are powerful pumping chambers, which push the blood out of the heart when they contract. The smaller and less powerful top chambers of the heart (the atria), help to fill the ventricles with blood for the next contraction. The regulation and coordinated pumping action of the heart is provided by a network of electrical connections, which deliver electrical signals to the heart

The right ventricle has a thicker and stronger muscular wall than the right atrium. The right ventricle pumps the oxygen-poor blood through the pulmonic valve into the lungs where blood gives up carbon dioxide it has carried from tissues. At the same time blood absorbs oxygen. From

When blood enters through the inferior and superior vena cava, into the right atrium, from the pulmonary veins into the left atrium. The right atrium contracts slightly before the left because it is first to receive the signal. During this contraction, diastole is occurring, the ventricles expand, and their pressure drops below the atria, which causes the AV valves to open and blood flows into the ventricles, causing pressure to rise and atrial pressure to fall.

From the right atrium the blood moves into the right ventricle through the AV valve. When the ventricles contract the blood is moves through the semilunar valve into the pulmonary artery. This artery then branches off into the left lung and the right lung so that the blood can become oxygenated. The oxygen-rich blood returns to the left atrium of the heart through the pulmonary veins.

As the left atrium contracts, the mitral valve opens, which releases stored oxygen rich blood into the left ventricle. The left ventricle fills with this blood then it contracts forcefully and the aortic valve opens. The left ventricle pushes the blood

De-oxygenated blood enters the heart through the Superior and Inferior Vena Cava. Oxygenated blood enters the heart from the lungs via the Pulmonary veins. Both right and left Atriums fill with blood at the same time, when they are full of blood the pressure will cause the Tricuspid valve in the right Atrium and the Bicuspid valve in the left Atrium to open and allow the blood to flow to both right and left Ventricles. Each of the Atriums will contract and force any remaining blood in to the Ventricles. Each of the Ventricles will contract (Systole) and the Atriums will relax (Diastole), pressure will then close the Tricuspid and Bicuspid valves (this is the first sound of a heart beat) The Ventricles will contract opening the Semi-Lunar valves

2) When this is full a valve opens and blood flows into the right lower ventricle.

In the heart there are two superior receiving chambers (atria) and two inferior pumping chambers (ventricles). The atria receive blood from the veins returning blood to the heart. The ventricles eject blood from the heart in to arteries to be carried all over the body. Each anterior surface of the atrium has an auricle; each auricle slightly increases the capacity of the atrium so it can hold a greater volume of blood. The differences in structure of these chambers reflect the varying nature of their functions.

At the start of each heartbeat, blood returning from the body and the lungs fills the heart 's two upper chambers. The mitral and tricuspid valves are located at the bottom of these chambers. As the blood builds up in the upper chambers, these valves open to allow blood to flow into the lower chambers of your heart. After a brief delay, as the lower chambers begin to contract, the mitral and tricuspid valves shut tightly. This stops blood from flowing backward. As the lower chambers contract, they pump blood through the pulmonary and aortic valves. The pulmonary valve opens to allow blood to flow from the right lower chamber into the pulmonary artery. This

Blood from the left side of the mitral and tricuspid valve open flows in the right ventricle and through its ventricle.

The heart is an exceedingly effective pump with four chambers. The two chambers on the right side get oxygen-poor blood from the body and pump this blood to the lungs, where it gets oxygen. The oxygen-rich blood comes back to the left side of the heart, and the two left chambers pump this oxygenated blood to the rest of the body. The lower (major) pumping chambers, called the ventricles, get blood from the top chambers, the atria, and do the diligent work of pumping the blood to the other parts of the body [1].