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SLS Bio12 circulationAC

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Question
Answer
Anterior vena cava   Vein that delivers blood from the anterior part of the body into the right atrium  
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Antibody   A protein that is released by a type of white blood cell in response to the presence of foreign antigens  
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Antigen   A substance capable of stimulating the release of antibodies  
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Aorta   The largest artery of the body conducts oxygenated blood out of the left ventricle  
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Arterial duct   Fetal artery that connects the pulmonary trunk to the aorta thus allowing some blood to bypass the nonfunctional lungs  
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Atrioventricular valve   Large valves that allow blood to pass from the atria to the ventricles of the heart  
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Atrioventricular node (AV)   One of two pieces of nodal tissue in the heart; is under the influence of impulses from the SA node. Generates impulses that travel to the ventricles  
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Blood pressure   The force that blood exerts on blood vessel walls  
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Capillary- tissue fluid exchange   The exchange of fluid materials between blood in a capillary and extra-cellular fluids in tissues as the blood travels through a capillary bed  
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Carotid artery   A branch of the aorta conducting blood to the head  
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Chordae tendineae   Small tendons which attach the AV valves to muscular extensions from the inside walls of the ventricles  
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Coronary artery   Blood vessels that serve the heart muscle  
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Coronary vein   A set of veins that conduct blood from the heart tissue to the vena cavae as it enters the right atrium.  
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Diastolic pressure   The pressure that blood exerts outwards on the walls of arteries when the heart is not contracting  
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Hepatic portal vein   The major vein that takes nutrient-rich blood from from the small intestines to the liver  
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Hepatic vein   The major vein that conducts blood from the liver back into the inferior vena cava  
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Hypertension   High blood pressure  
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Hypotension   Low blood pressure  
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Iliac artery   The major artery of the legs  
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Iliac vein   The major vein of the legs  
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Jugular vein   The veins that conduct blood from the head down the neck  
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Left atrium   Chamber that receives blood from the pulmonary vein and passes it to the left ventricle  
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Left ventricle   A chamber in the heart that pumps the blood to the body  
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Lymph capillaries   These capillaries absorb the fluids that become lymph  
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Lymph node   A spot along lymph ducts, usually where two or more ducts join together  
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Lymphatic system   The system that is made up of all the vessels and nodes that transport and clean lymph  
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Mesenteric artery   The blood vessel that conducts blood to the intestines  
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Oval opening   A valve allowing blood to pass from the right ventricle of a fetal heart into the left ventricle  
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Plasma   The fluid portion of blood; mostly water (91%)  
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Platelets   A type of blood cell formed by the fragmentation of a megakaryotype; function for blood clotting  
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Posterior vena cava   The major vein that drains the blood from the body regions posterior to the heart  
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Pulmonary arteries   The arteries that conduct blood to the right and left lungs  
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Pulmonary trunk   Conducts blood out of the right ventricle  
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Pulmonary veins   Conduct blood from the lungs to the left atrium  
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Purkinje fibres   These are nerve tracts that extend down the septum of the heart and out into the walls of the ventricle  
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Red blood cell   These cells contain hemoglobin which transports oxygen  
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Renal artery   The artery that is a branch of the aorta and conducts blood into the kidney  
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Renal vein   The vein that conducts blood out of a kidney and into the posterior vena cava  
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Sinoatrial node (SA)   Called the pace maker of the heart  
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Subclavian artery   These are branches of the aorta that take blood to the body walls and shoulder areas  
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Subclavian vein   These returns the blood to the superior vena cava which conducts blood right back to the right atrium  
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Systolic pressure   The force of the blood outwards on the arteries when the ventricles are contracting  
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Systemic circulation   The part of the circulatory system that delivers oxygenated blood to the body cells  
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Umbilical artery   Takes waste products from the fetus to the placenta  
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Umbilical vein   Takes nutrients from the placenta to the fetus  
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Veins   A blood vessel that returns blood towards the heart  
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Venous duct   A vessel that bypasss the functions of the liver  
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White blood cell   A type of blood cell that combats infection  
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