The APPARATUS CIRCULATORIO

The apparatus circulatory functions is responsible for bringing the blood throughout the body. It's format for the heart and blood vessels. The function of the heart is to give blood by blood vessels. Blood is a red liquid flowing through the inside of blood vessels that travel throughout the body. In our body we have five liters of blood. Some of its functions are transporting substanciassustancias throughout the body and protect the body from disease. Composition of blood Blood consists of a liquid called plasma and blood cells floating in the plasma. The plasma is a yellowish liquid formed basically by water. Carries substanciassustancias nutritious and substanciassustancias waste. The blood cells are red blood cells. They are hard and are reddish. They carry oxygen and carbon dioxide .·/*·*/ The white blood cells. They are irregularly shaped and are almost transparent. They fight infections caused by microorganisms such as influenza .·/*·*/ Platelets. They rounded form. They are responsible for the blood to clot when there is a cut to the skin. Blood is a red liquid that flows through our body. It is formatted by the plasma and cells sanguíneas.Los blood vessels Blood vessels are elastic walls ducts where the blood flows. Should three types: arteries, veins and capillaries. The arteries carry blood from the heart to the rest of the body. They have thick walls. The veins carry blood from different parts of the body it to heart. They have thin walls. The capillary vessels are much until communicate arteries with the veins. In capillaries occurs exchange substanciassustancias between the blood and cells. The heart and blood circulation Your heart is a muscle the measure of fist located between the lungs. Thanks to his movement contraction and dilation, circulates blood by blood vessels. The heart has four chambers: the two above are called atria and the two lower ventricles. The blood comes through the atria, ventricles to pass, and these so forcefully expelled to the outside. In the body there are two different circuits blood, lung and large. The circuit lung, blood goes from the heart to the lungs, and lungs to corazón.A lungs, the blood expels carbon dioxide and absorbs oxygen from the air. On the circuit, the blood goes from the heart to different parts of the heart (head, limbs, intestines, kidneys, etc..), And returns to the heart. In the circuit generally provides substanciassustancias nourishing blood and oxygen to the cells. The cells transform these substanciassustancias energy, and generate substanciassustancias waste and carbon dioxide, which drive the blood, which will expel them from the heart. The functioning of the heart The heart pumps blood interrompudamente and high speed. By pumping blood, the heart is contracted and dilates rhythmically. The estate of a contraction and dilation is a heartbeat. In a minute, the heart beats about 70 times, as you can see if you put your hand on his chest. Notes the continued functioning as the heart: The heart is relaxed and vacido blood. Blood enters the atria. The atria contract and push blood to the ventricles. The ventricles contract and expel the blood from the heart. The apparatus circulatory format is `for the heart and blood vessels. The heart pushes blood through the blood vessels that travel throughout the body.