ExerCIse ime to Trace! MATERIALS NEEDED In this exercise you will trace the bloo

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ExerCIse ime to Trace! MATERIALS NEEDED In this exercise you will trace the blood flow through various places in the body. As you trace, keep the following hints in mind- Don't forget about the hepatic portal system! Remember that most venous blood coming from the abdominal organs has to go through the hepatic portal vein and the hepatic portal system before it can enter the general circulation iDon't forget that the venous blood in the brain drains first into the dural sinuses, then into a vein. you start in a vein, you have to go through the venous system and through the heart before you can get back to the al system. If you start in an artery, you have to go through the arterial system and then through a capillary bed before you can hrough the venous system. You can't go backward through the arterial system-that's cheating! an artery and end in an artery, you likely will have to go through the arterial circuit, through a capillary bed, through the venous circuit, back to the heart and lungs, and then reenter the arterial circuit. Whew Sometimes there is more than one right answer, because you may take multiple paths Following is an example, where we have started in the right popliteal vein and ended in the left intermal carotid artery: start right popliteal vein right femoral vein right external iliac vein right common iliac vein pulmonary artery lungspulmonary veins left atrium arteryEnd ior vena cava right atriumtricuspid valve right ventricle pulmonary valve mitral valve left ventricle aorta aortic arch left common carotid artery left internal carotid Wasn't that easy? UNIT 17 THE CARDIOVASCULAR SYSTEM-PART II: BLooD VEssEL ANATOMY 403

Explanation / Answer

Right radial vein --> right brachial vein --> right axillary vein --> right subclavian vein --> right brachiocephalic trunk --> superior venacava --> right atria --> right ventricle -->pulmonary arteries --> lungs --> pulmonary veins --> left atrium --> left ventricle -->aorta --> thoracic aorta -->abdominal aorta --> right renal artery

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