Pulmonary vein Essays

6 Fun facts about the circulatory system: If you stretch out all the arteries, veins, and capillaries; they will stretch out to 100,000 KM in distance, and this distance circles the Earth 2.5 times. The capillaries make up about 80% of the length, even though they are the smallest of all blood vessels. blood cells are roughly the same length and width as capillaries. Capillaries are 8 micros or 1/3000 inches big. However, some capillaries are smaller than blood cells, which forces these blood cells

function of the heart, and the structure of the arteries veins and capillaries The heart is a key muscular organ, and is controlled by the autonomic nervous system. It transports blood to the body’s tissues via the circulatory system; blood provides the body with oxygen, nutrients and also assists in the removal of carbon dioxide and metabolic wastes, hormones are transported throughout the body by plasma. Arteries, arterioles, veins, capillaries and valves, are the blood vessels which are responsible

chambers: right atrium, right ventricle, left atrium, and left ventricle. The atriums collect the blood from the pulmonary circulation while the ventricles pump the into the systemic circulation. In the heart there are three types of blood vessels such as arteries, vein, and capillaries. Arteries can carry the blood away from the heart which is being oxygenated to all parts of the body. Veins can carry blood

blood that leaves the aorta is full of oxygen, this is important for the cells and the brain to do their work. Oxygen reaches the blood and travels throughout the body in its system. On its way back to the heart the blood travels through a system of veins as it reaches the lungs, the carbon dioxide (waste product) is removed from the blood and replaces with fresh oxygen, which we inhale through the lungs. The heart muscle contracts and relax-es. The heart muscle that contract is known as systole and

dioxide and urea); this system is also responsible for circulating lymph (colourless fluid that contains white blood cells protecting organisms against disease). The cardiovascular system itself consists of the heart and blood vessels (arteries and veins), which pumps blood throughout the body. The heart itself is the variable pump consisting of striated cardiac tissue (dense arrangement of myosin and acting overlapping). Composed of 4 different compartments called the atria (right and left atrium)

Describe the function of the heart, cardiac cycle and circulatory system Function of the heart The heart is a muscular organ that pumps and circulates blood throughout the body via a transport system of arteries and veins and capillaries. As the blood circulates throughout the body it supplies oxygen and nutrients to the tissues as well as removing carbon dioxide and harmful waste products (Tucker, 2015). The structure of arteries Arteries have thick muscular walls and a small lumen passage

‘Macrophages’ capture and digest them, platelets are also formed in the red bone marrow. (innerbody,2016) The functions of blood The bloods functions include: Transportation – the blood carries other substances around the body inside the Arteries, Veins and Capillaries. The blood flows through the circulatory system and also dissolves gases such as oxygen and carbon dioxide. Immunity and defence- white blood cells are cells that help fight infection. (Teachpe,2017). Maintaining body temperature.

the deoxygenated blood through the pulmonary valve and artery to the lungs. But left ventricle pumping oxygenated blood through the aorta and valve into the circulation. The aorta is main artery of the body and it is top of heart which carries the blood away from the body. The coronary artery supply oxygen-rich blood to the heart muscles. Pulmonary veins are large vessels that carrying oxygenated blood from the lungs to the left atrium which it is draining. Pulmonary trunk is a vessel that appear from

A Narrative/Descriptive Essay Mclainn Diaz & Cara Obas BC12-MM March 2, 2016 “Banning smoking in public places” In our generation today, a lot of people now are engaging themselves in different kinds of things that can pleasure their own selves. Some use drugs to relieve stress; some drink alcohol to forget all the worries and problems which is really not a solution at all, and some smoke just to pleasure themselves. But for young people, they smoke for to look mature, to blend on what their

It is located at the top of the heart. The function of the aorta is to bring blood containing oxygen from the left ventricle to the rest of the body. 2. Superior vena cava Vein Superior vena cava vein (vena cava) is a large vein in the body. It is located also at the top of the heart. The function of the superior vena cava vein was to bring back the carbon dioxide rich blood from around the upper body to the heart. 3. Arteries Pulmonalis The artery is an artery that carries pulmonalis blood from the

Do you want to be put under the risk of the negative impacts your body can get from smoking or even secondhand smokinge? Smoking should not be allowed at parks and other public venues because it has health risks associated with it, it creates a dirty and unsafe environment and it is a bad influence. Smoking itself has many health risks, but for it to be allowed in public places imposes even bigger health risks to the public. The first reason smoking should not be allowed in public places such as

Artificial dyes are found in a majority of processed foods in America. Most synthetic dyes are made of, or are based off of petroleum, a crude oil. Since these dyes are mainly petroleum based they have serious health risks on people, especially those diagnosed with ADHD, (Attention deficit/hyperactive disorder.) Because of these potential dangers, laws dating back to the 19th century have been passed, banning the addition of dyes and other harmful substances to foods. Through the years there have

Heart is at the center of the circulatory system as it continuously pumps blood through various organs of the body, which in turn provides the much needed oxygen to keep them functioning well. The size of the heart is usually the same as the size as one’s fist. This mechanical organ has 4 chambers and is supplied by a complex array of blood vessels that bring blood to and from the heart. Heart failure is a term to describe the condition where the heart cannot do it’s work or does not manage its workload

The function of the pulmonary artery is to pump deoxygenated blood to the lungs from the heart to become oxygenated. The pressure inside the pulmonary artery is very low, although blood here is at a slightly higher pressure than the blood in the pulmonary vein, and this is reflected as the walls of the artery are significantly thinner than the walls of a corresponding artery, for example, the aorta. The walls of the pulmonary artery contain a large amount of elastic fibres in order to maintain the

Anatomy and Physiology 1. Describe the function of the heart, cardiac cycle and circulatory system Function of the heart The heart is a muscular organ that pumps and circulates blood throughout the body via a transport system of arteries and veins and capillaries. As the blood circulates throughout the body it supplies oxygen and nutrients to the tissues as well as removing carbon dioxide and harmful waste products (Tucker, 2015). The structure of arteries Arteries have thick muscular walls

The heart circulates blood through two pathways: the pulmonary circuit and the systemic circuit. The pulmonary circuit is made up of the heart, lungs, pulmonary veins and pulmonary arteries. This circuit pumps deoxygenated blood from the heart to the lungs where it becomes oxygenated and returns to the heart. The systemic circuit is made up of the heart and all the remaining arteries, arterioles, capillaries, venules, and veins in the body. This circuit pumps oxygenated blood from the heart to all

Arteries carry blood away from the heart, and veins carry it toward the heart. Capillaries are tiny blood vessels with very thin walls made up of only one layer of cells. Arterioles are very small arteries which branch to form capillaries. Capillaries join to form tiny veins called venules. Materials are exchanged between the blood and cells through the thin walls of the capillaries. The inner layer of blood

obesity, smoking, lack of exercise, anxiety, stress, and aggression. The pulmonary and systemic circuits carry blood to the organs in the body. The pulmonary circuit is on the right half of the heart. The pulmonary circuit carries blood to the lungs for gas exchange and returns it to the heart. It pumps oxygen poor blood into the pulmonary trunk, which immediately divides into the right and left pulmonary arteries. The pulmonary arteries transport blood to the air sacs of the lungs, where carbon dioxide

ventricles now contract (systole) and atriums relax (diastole). The pressure closes the tricuspid and bicuspid valves (causes the first sound of the heart beat). The contraction of the ventricles opens the semi lunar valves, forcing blood into the pulmonary and aorta arteries. The ventricles now relax (diastole) and any backflow of blood causes the semilunar valves to close (causing the second sound of the heart beat). Cardiac muscle never tires. The heart has its own

called valves, prevent blood from flowing back in the incorrect way (Ballard, 7). As the right side of the heart pumps oxygen-deprived blood along the pulmonary arteries to the lungs, blood loses carbon dioxide and collects oxygen in the lungs (Rogers, 66). "The pulmonary veins open into the left atrium of the heart," recalls Rogers (66). This is pulmonary circulation. When the left side of the heart pumps blood along the aorta and around every part of the body, it takes oxygen to the tissues where it