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Created with Fabric.js 1.4.5 FUNCTION: The circulatory system permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from cells in the body to nourish it and help to fight diseases, stabilize body temperature and pH, and to maintain homeostasis. Circulatory System STRUCTURE: The basic structure of the circulatory system includes the heart, blood, and blood vessels. There are two processes which occur in this system which are called pulmonary circulation and systemic circulation. Pulmonary circulation takes place mainly in the lungs, whereas systemic circulation takes place throughout the entire body. Of course this whole process involves more components such as plasma, RBC's, WBC's, and platelets. double click to change this header text! LEVELS OF ORGANIZATION:Muscle > Connective & Muscle Tissue >Heart >Digestive & Respiratory > HISTOLOGY:Cardiac MuscleConnective EpitheliumPericardiumMyocardiumEndocardium Transport Mechanisms:On the right Side of the Heart, blood enters the heart through two large veins, the inferior andsuperior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve. When the ventricle is full, the tricuspid valve shuts. This prevents blood from flowing backward into the atria while the ventricle contracts. As the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated. On the left Side of the Heart, the pulmonary vein empties oxygen-rich blood from the lungs into the left atrium of the heart. As the atrium contracts, blood flows from your left atrium into your left ventricle through the open mitral valve. When the ventricle is full, the mitral valve shuts. This prevents blood from flowing backward into the atrium while the ventricle contracts. As the ventricle contracts, blood leaves the heart through the aortic valve, into the aorta and to the body. RELATIONSHIPS TO OTHERBODY SYSTEMS:The cardiovascular system is a system which nourishes the blood, it gains nutrients from the digestive systemand filters them into the blood. The cardiovascular system is also associated with the respiratory system which brings in oxygen to nourish the blood. It also helps add other nutrients which involves the endocrine system, and the process of respiration involves the use of the musculoskeletal system.
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