Veins carry blood towards the heart Venules are small veins 01 mm 35 Explain

Veins carry blood towards the heart venules are small

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Veins – carry blood towards the heart. Venules are small veins (< 0.1 mm). 35. Explain the location of major blood vessels of the body, such as aorta, coronary arteries, vena cava, portal vein, pulmonary arteries (pulmonary trunk) and pulmonary veins, carotid arteries, subclavian arteries. Which organs does each supply or receive blood from? Aorta- Supplies oxygenated blood out of the heart. Coronary arteries- an artery supplying blood to the heart Vena cava- brings deoxygenated blood from the body into the heart. Portal vein- takes blood to the liver from the spleen, stomach, pancreas, and intestines. Pulmonary arteries- artery carrying blood from the right ventricle of the heart to the lungs for oxygenation. Pulmonary veins- vein carrying oxygenated blood from the lungs to the left atrium of the heart. Carotid arteries- major blood vessels in the neck that supply blood to the brain, neck, and face. Subclavian arteries- paired major arteries of the upper thorax (chest), below the clavicle (collar bone) in human anatomy. They receive blood from the aortic arch. 36. What are the functions of anastomosis blood vessels? Where can you find them? A connection (an anastomosis) between two blood vessels, such as between arteries (arterio-arterialanastomosis), between veins (veno-venous anastomosis) or between an artery and a vein (arterio-venous anastomosis). 37. Explain how portal circulation is different from regular circulation. In which organs can you find it? The liver is unusual in that it has a double blood supply; the right and left hepatic arteries carry oxygenated blood to the liver, and the portal vein carries venous blood from the GI tract to the liver. Lymphatic and immune system
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38. List the functions of lymphatic system -assist in circulating body fluids (lymph) -defends body against disease-causing agents - Drains excess interstitial fluid - transports dietary lipids A, D, K, & E - Carries out immune responses- highly specific 39. List the organs and structures of lymphatic system. Lymph Lymphatic vessels (capillaries, trunks, ducts etc) Lymphatic organs – primary and secondary Primary – where lymphocyte develop: Thymus Red bone marrow Secondary lymphatic organs and tissues – where lymphocytes reside: Lymph nodes Lymphatic nodules Spleen 40. Give definition of the following terms: immunity, self-tolerance, susceptibility, innate immunity, adaptive immunity, pathogen, infection, antigen, cellular immunity, humoral immunity, immune memory, immunocompetence. Immunity- the ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells. Self-tolerance- failure (a good thing) to attack the body's own proteins and other antigens. If the immune system should respond to "self", an autoimmune disease may result.
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