Free Circulatory System Essays and Papers

The circulatory system consists of the heart, blood vessels and blood, and is liable for transporting life-giving oxygen all over the body. While exercising, the body’s need for oxygen rises; the harder the workout, the more oxygen the body demands. To make sure that the sufficient oxygen is offered to muscles during activity, the body makes short- and long-term fluctuations. Exercise and Heart The heart -- stated to as the myocardium, meaning heart muscle -- is a four-chambered pump about the size

Circulatory System A simple definition for the circulatory system would be that it is the main transportation and cooling system for the body. Red Blood Cells have an important job in this system in that they carry all sorts of packages that are needed by all the cells in the body. Red blood cells carry oxygen and nutrients to the cells, which is needed in order for cells to survive. Besides red blood cells there are also White Blood Cells moving in the circulatory system. White Blood Cells can be

Introduction: The transport system in our body that carries blood is known as the circulatory system. This system allows the blood to carry essential nutrients such as amino acids, oxygen, and hormones to the cells in all parts of our body to ensure they are able to maintain body temperature and pH known as homeostasis. The oxygen-rich blood enables cellular respiration to occur efficiently which is vital for humans to continue to survive. It also carries cellular waste such as carbon dioxide which

A fish heart is one of the simplest vertebrate hearts. The circulatory system is a single circulation, with a two-chambered heart. The blood from the fish’s atrium is pumped into the ventricle. Blood is pumped to the gills from the ventricle where gas exchange occurs in the gill filaments. This is called gills circulation. The carbon dioxide is removed while the oxygen is taken in. This re-oxygenated blood is then transport to the rest of the body’s tissues and organs to get rid of carbon dioxide

heart and circulatory system. Everything inside it is connected to how it works. Although the red blood cell is a great cell, it can malfunction and cause diseases. The red blood cell is a very interesting cell. The red blood cell is part of the heart and circulatory system. Heart and blood vessels, including things like arteries, veins, and capillaries, make up the circulatory system. Our bodies have two circulatory systems, the pulmonary system and the systemic system. The pulmonary system goes from

The Human Circulatory System The human circulatory is one of, if not the, most important system in the body. “It consists of such organs as the heart, and lungs” (Dunbar 4). “However every organ and organ system in the body is nourished and kept alive through the use of the circulatory system” (2-4). The main organ in the circulatory system is the heart. “Basically, the heart is a pump that keeps fresh blood coursing through your body, bringing oxygen and nutrients to all your organs and

The Heart and Circulatory System The regular heart beat and pulse is produced by contractions of the heart muscle during the cardiac cycle. These contractions are caused by an electrical stimulus called the cardiac impulse. This natural pacemaker of the heart, called the Sinoatrial node, is located in the Right Atrium. The electrical impulse leaves the Sinoatrial node and travels to the right and left Atria, causing them to contract together. After contraction, there is a period of

does the integumentary system. They are responsible for movement. They are attached to the bones (skeletal system) and there are nearly 700 different ones. Each is made up of the muscle tissue, blood vessels, tendons and nerves. Each has a specific purpose. For example, the leg muscles assist in moving and bending the legs. The muscles make up nearly half of a person’s total body weight. “The circulatory system includes your heart, arteries, veins,

Absence of circulatory system Circulatory systems are absent in some animals, including flatworms and unicellular animals. Flatworms lack enclosed fluid or lining in their body cavity, but a muscular pharynx instead that leads to an extensively branched digestive system where nutrients and oxygen diffuse directly to all cells with ease. This is enabled by the reduced distance of body cells from the digestive system because of the flatworm’s dorso-ventrally flattened body shape. Thus every cell obtains

Throughout these experiments, a few different things involving the cardiovascular system and the respiratory system were studied. For these experiments it was hypothesized that pumping blood against gravity will cause the heart to work harder and the heart rate and blood pressure to increase. It was also hypothesized that exercise will cause the heart rate to temporarily increase. As for the final hypothesis involved in these experiments, it was said that during an exhale the heart rate will be lower