Valves

the breastbone. It has two major coronary arteries, electrical impulses, four chambers, and four valves to help the blood flow one way. Deoxygenated blood enters the right atrium from the superior and inferior vena cava. When the right atrium contract the blood flows through the tricuspid valve and into the right ventricle. When the right ventricle contracts the blood passes the pulmonary semilunar valve, into the pulmonary artery, and the blood is going to the lungs. The blood goes through a…

Usually, the longer the tube, the lower the note. The three valves of the trumpet add lengths of tubing to the instrument to decrease the pitch. The first valve lowers it by a whole tone, then the second by a semitone, and the third by a minor third. For example, the valves are shown here in order to play the notes of the scale. The first valve extends the trumpet’s tube by 160 mm, the second by 70 mm, and lastly the third by 270 mm. These measurements…

ventricle (LV) [1-2]. The tunnel bypasses the aortic valve and may lead to aortic insufficiency (AI), cardiomegaly, LV dilatation, and congestive heart failure [1-3]. Surgery remains the best definitive treatment option [2-3]. ALVT is exceedingly rare representing 0.001% of all congenital heart defects [2-3], and…

The Mechanics of the Heart An electrocardiogram, or EKG/ ECG, is a non-invasive test that measures the electrical activity of the heart and its electrical patterns. An electrical signal is sent through the heart to produce contractions that move the blood. This is what an EKG measures. In total that test may take from five to ten minutes and are ordered by a doctor to examine the heart more close. An EKG is done while the patient is lying down completely still (in order to reduce artifact or…

CNG Compressed Natural Gas (CNG) is a fuel obtained by compressing a natural gas to less than its 1 per cent volume at standard atmospheric pressure volume or 3600PSIA. It is use as an alternative automotive fuel with compressed natural conversion kit or compressed natural gas engine. PHYSICAL PROPERTIES OF COMPRESSED NATURAL GAS 1. It is colourless and odourless. 2. It is clean and has a clean burning. 3. It has low carbon monoxide emission. 4. It has no particulate matter emission. 5. For…

Having a Fluval 406 can add an ecxellent value to your fish tank The aquastope valve,the removable filter media, and the multi-stage filtration are a wise choice for consumers who are replacing their old canister filter. Still in doubth about purchasing this model. Multistage filtration, high motor technology,quite running, add to that aquastope valves and instant priming. What do you get? An ecxellent value for money you pay for it. Still not conviced? Here are sumirezed…

from the top of the upper parts of your body. The right atrium pumps blood through the tricuspid valve and into the right ventricle. The tricuspid valve would open up once blood is ready to go to the right ventricle. Once blood has reached the right ventricle, the valve would close. The right ventricle’s job is to pump blood into the pulmonary valve and into the pulmonary artery. The pulmonary valve would open up once blood is ready to travel out of the heart through the pulmonary artery.…

cava 10, this blood enters the right atrium 11. Now the right atrium contracts pushing the blood into the right ventricle 1 through the tricuspid valve. As the ventricle is filled the tricuspid valve closes to prevent any back flow of the blood. The right ventricle contracts forcing the blood to enter into the pulmonary artery 2 through the pulmonary valve. The pulmonary artery extends into both of the lungs where the deoxygenated blood is replenished with oxygen and is send back to the heart…

area has allowed numerous medical advancements, including the development of pacemakers and heart valves. In early testing, valves were transplanted from one animal to another, effectively testing the new procedure. For instance, a heart valve was transferred from a goat to a dog. Because of these procedures, scientists have made progress, improving the performance and durability of valves. Heart valves and similar devices have saved the lives of many people around the…

TASK 1 HEART The heart is a muscular organ that pumps blood throughout the body (Chiras, 2008). STRUCTURE The heart wall is composed of three layers of tissues: pericardium, myocardium and endocardium (Wilson, Waugh and Ross, 1996). Label structures of the heart for the diagram. Aorta is the major artery that carries oxygenated blood to the body. Pulmonary veins carry oxygenated blood from the lungs into the heart. Left atrium is one of the left upper chambers that takes oxygenated blood from…