Does the direction of blood flow through blood vessels in this order?
Left atruim,left ventricle,pulmonary artery,pulmonary veins,
In most folks in Texas, the right ventricle feeds the pulmonary artery, then the lungs, then the pulmonary veins, then the left atrium,...
http://www.pbs.org/wgbh/nova/heart/heartmap.html
To determine the direction of blood flow through blood vessels, we would need to understand the circulatory system. Here is how you can determine the answer to your question:
1. Start with understanding the structure of the heart: The heart consists of four chambers - two atria (left atrium and right atrium) and two ventricles (left ventricle and right ventricle). The atria are upper chambers, while the ventricles are lower chambers.
2. Analyze the path of blood flow: Blood enters the heart through two major veins - the superior vena cava (returning deoxygenated blood from the upper body) and the inferior vena cava (returning deoxygenated blood from the lower body). The blood flows into the right atrium.
3. Next, the right atrium contracts, pushing blood into the right ventricle. From the right ventricle, blood is pumped out of the heart through the pulmonary artery.
4. The pulmonary artery carries deoxygenated blood from the heart to the lungs. In the lungs, blood is oxygenated as it picks up oxygen and releases carbon dioxide through the process of respiration.
5. After oxygenation, the blood returns to the heart through the pulmonary veins.
6. The pulmonary veins carry oxygenated blood from the lungs to the left atrium of the heart.
7. Finally, the left atrium contracts, pushing blood into the left ventricle. From the left ventricle, blood is pumped out of the heart to the rest of the body through a large artery called the aorta.
Based on this understanding, the correct order of blood flow through the mentioned blood vessels is as follows:
Left atrium → left ventricle → pulmonary artery → lungs (for oxygenation) → pulmonary veins
Please note that before the blood enters the left atrium, it returns from the lungs through the pulmonary veins, which carry oxygenated blood.