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Circulation of blood Tamara Tolp Mentor: A. Žmegač Horvat CIRCULATORY SYSTEM arteries arterioles veins venules capillaries heart BLOOD circulates through the body carries nutrients (food) ,oxygen and many other substances to all cells of the body carries away waste products without access to the blood, cells and body tissues die CIRCULATION OF BLOOD Pulmonary circulation heart - lung Systemic Circulation heart – tissue capillaries PULMONARY CIRCULATION oxygen-poor blood enters heart from the body and goes to lungs pulmonary artery carries blood deficient in oxygen PULMONARY CIRCULATION lung capillaries blood absorbs oxygen and loses carbon dioxide oxygen-rich blood pulmonary veins carry oxygen-rich blood SYSTEMIC CIRCULATION oxygen-rich blood returns to the heart through pulmonary veins left ventricle pushes the blood out through the main artery, the aorta SYSTEMIC CIRCULATION the aorta divides into numerous branches called arteries arterioles – tissue capillaries SYSTEMIC CIRCULATION tissue capillaries near the body cells blood delivers oxygen and picks up carbon dioxide SYSTEMIC CIRCULATION venules, veins return the blood to the right side of the heart oxygen-poor blood CAUSES OF IMPAIRED BLOOD CIRCULATION impaired or poor blood circulation result of age, lifestyle or disease, accumulation of free radicals CAUSES OF IMPAIRED BLOOD CIRCULATION lack of oxygen reduces the energy level in cells and waste products accumulate in both muscles and connective tissue pain and other illness may occur in several places in the body SIGNS OF IMPAIRED BLOOD CIRCULATION pain while walking muscle cramps (common at night) cold hands and feet restless legs swollen legs and feet slow healing of injuries/ wounds myocardial infarction (heart attack) stroke MEASUREMENT OF BLOOD CIRCULATION even when the blood pressure is normal, blood circulation may be seriously impaired! awareness of the causes and effects of poor blood circulation is very important