Describe the Physiology of the Cardiovascular System in Relation to Energy.

Our cardiovascular system is composed of the heart and blood vessels. The main purpose of this system is to transport substances throughout the body. Even though transportation is the main function of the cardiovascular system, it is not the only function. Along with transportation we have protection and regulation.

Your body requires energy in order to be able to perform tasks. Energy comes in many different forms. They are chemical, light, sound, heat and mechanical. You can get energy from different food substances i.e. glucose, fatty acids, sugars and amino acids. To be able to get the energy from these food substances energy needs to be released with oxygen. This is known as aerobic respiration. The role that energy plays in our body is the process of moving molecules in and out of our cells while breaking down the larger molecules and building new molecules. The cardiovascular system transports oxygenated blood around the body and to the cells. It will then collect the deoxygenated blood which is ready for the excretion from the cells. The cardiovascular system will deliver the nutrients oxygen and glucose via the blood stream. Oxygen is need for aerobic respiration to occur. The cardiovascular system will pump oxygen and nutrients carrying blood throughout the body. The glucose molecules that are carried by the blood are transported into the cells. Along with the oxygen that is diffused into the cells they are used in respiration to produce ATP. The respiratory system is responsible for bringing in oxygen as well as using it to burn the nutrients that we need for energy. The respiratory system contains alveoli which allow the diffusion of oxygen into the blood stream

The heart is a major organ in the body, this organ pumps blood around the body, through veins, capillaries and arteries. The blood carries oxygen to our cells and also carries waste products which include water and carbon dioxide, which are products of respiration. Blood also helps spread out salts, enzymes, urea, nutrients, hormones and heat across the body.

Blood Blood is another important part of the body it carries nutrients, water, oxygen and waste products to places in your body. Your blood is pumped by your heart.

On the right side the flow of blood enters the heart through the inferior and superior vena cava that throws out the poor oxygen blood to the right atrium. On the left side of the heart the pulmonary veins takes action that dumps the rich oxygen blood that is coming from the lungs to the left atrium. This has both sides of the heart working together. When it comes to the atrial contraction, the right side makes the blood flow to the right atrium to the right ventricle to the tricuspid valve. Once the ventricles fill up completely, that is when the tricuspid valves shut closed. This is to prevent the blood from going backwards to the atria, making the ventricles squeeze together. The left side of the atrial contraction makes the blood flow from

To reach the body, the oxygen filled blood has to travel through the arteries. The arteries are

Cardiovascular system is powered by the body’s hardest-working organ the heart, which is only about the size of a closed fist. Even at rest, the average heart easily pumps over 5 litres of blood throughout the body every minute. The cardio vascular system delivers oxygen to the body tissues from the lungs and nutrients to the liver from the intestines. The cardiovascular system also removes carbon dioxide from the cells to the lungs, to be excreted and also removes waste products from the liver to the kidneys. The cardiovascular system transports white blood cells, Antibodies and hormones to different parts of the body.

Blood does many important processes in our organism, such as transporting oxygen from the lungs and nutrients to the tissues of the body, removes the waste products from the tissues, including carbon dioxide.

Blood circulation begins when the heart relaxes, blood flows from the two chambers of the heart, known as the atria, into the lower two chambers, the ventricles, which then expand. The systematic circulation has the left ventricle pumping oxygen rich blood into the aorta. The blood then travels from the main artery to the other arteries in the capillary network. The blood will be release the oxygen, nutrients and takes the carbon dioxide and waste. After that the blood travels in the veins to the right atrium and into the right ventricle. This leads to the pulmonary circulation, which “begins with the right ventricle pumping blood that has little oxygen into the pulmonary artery, which branches off into the other arteries and capillaries” (PubMed Health, 2012). The capillaries are where the carbon dioxide is released from the blood into the pulmonary vesicles and fresh oxygen enters the bloodstream. As we breathe out carbon dioxide is released from the body and oxygen enters the lungs when we breathe in. As the “oxygen rich blood travels through the pulmonary vein and

The cardiovascular system is an organ system that allows blood to circulate and is in charge of transporting oxygen, as well as carbon dioxide, hormones, nutrients, and cell waste items all over the body (Pironet, et al., 2016). This system helps to regulate body temperature, maintain homeostasis, and fight diseases. The cardiovascular system is made up of the heart, blood vessels, blood and plasma of the blood, and cells.

Blood is a major component in the cardiovascular system. It is responsible for many important tasks that help the body function properly. Blood

“During the diastole phase, the atria and ventricles are relaxed and the atrioventricular valves are open. De-oxygenated blood from the superior and inferior vena cavae flows into the right atrium. The open atrioventricular valves allow blood to pass through to the ventricles. The SA nodes contracts triggering the atria to contract. The right atrium empties its contents into the right ventricle. The tricuspid valve prevents the blood from flowing back into the right atrium.”(About.com)

The heart is connected to the rest of the cardiovascular system through several large arteries and veins. The right atrium receives blood through the superior and inferior vena cava, the two largest veins of the body, while the left ventricle receives blood through the pulmonary veins. The right ventricle pumps blood through the pulmonary artery as it travels to the lungs while the left ventricle ejects the blood into the aorta, the largest artery in the body, from where it travels to the rest of the body.

The human body is composed of several systems each have different functions but they are very important. One such system is the cardiovascular or circulatory system, this system together with its organs are specialized in transporting food and respiratory gases throughout the body as well to facilitate blood circulation in the body. The main function of the cardiovascular system is to distribute nutrients throughout the body and gases like oxygen and carbon dioxide, as well as transporting hormones and cells. It also collects and removes wastes from cellular metabolism and takes them to the excretory system. The cardiovascular system consists of the heart, the blood vessels are three kinds of blood vessels: arteries, veins and capillaries. The heart is the most important organ of the cardiovascular system, it is the most vital organ in the human body, and its function is to circulate the blood acting as a pump.

The blood is one of the most essential parts of a working circulatory system. The eight too ten pints of blood is the sticky, red liquid that is constantly flowing through our veins, carrying nutrients and oxygen to tissues found throughout the body. The hypothalamus part of the brain is known as the regulating system for the entire body. This is what keeps our blood at a normal temperature of 98.6 degrees Fahrenheit. Although blood is always red, it may appear to be different colors (blue, dark red, possibly even greenish). This is caused by the amount of oxygen found in the blood as it flows through our veins. Less oxygen leads to a darker cooler tone, and even the blue color. The blood is composed of red and white blood cells, platelets, plasma, and hemoglobin. Hemoglobin is a complex protein made of iron that attaches itself to the red blood cells, which are carrying oxygen to the body cells, and carbon dioxide back to the lungs. White blood cells destroy disease-causing toxins and bacteria from the blood. Plasma, is the the clear fluid where the red and white blood cells are found. Plasma carries food and other useful substances to the cells and removes carbon dioxide. Smaller than the blood cells, platelets contribute to the blood clotting process.