Time to Trace!* In this exercise you will trace the blood flow through various p

Question

Time to Trace!* In this exercise you will trace the blood flow through various places in the body. As you trace, keep the following hints in mind: MATERIALS NEEDED Dont 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. D Dont forget that the venous blood in the beain drains first into the dural sinuses, then into a vein. start in a vein, you have to go through the venous system and through the heart before you can get back to the terial systern. OIf you start in an artery, you have to go through the arterial system and then through a capillary bed before you can through the venous system. You cant go backward through the arterial system-that's cheating D If you start in 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 beart 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 internal carotid artery: Start: right popliteal vein right femoral vein right external ilhac vein right common iliac vein inferior vena cava right atrium tricuspid valve right ventricle pulmonary valve pulmonary artery lungs pulmonary veins left atrium mitral valve left ventricle aortic valve ascending aorta-, aortic arch left common carotid artery leh Interna carota artery End Wasn't that easy? UNIT 17 THE CARDIOVASCULAR SYSTEM-PART II: BLOOD VESSEL ANATOMY 403

Explanation / Answer

Renal artery Segmental artery Interlobar Arcuate artery Cortical radiate arteries Afferent Arterioles Glomerular Efferent arterioles Peritubular capillaries Venules Cortical radiate veins Arcuate veins Interlobar veins Renal vein Inferior vena cava Right atrium Tricuspid valve Right Ventricle Pulmonary artery Lungs Pulmonary vein Left atrium Mitral valve Left ventricle Ascending aorta Left common carotid Left internal carotid Middle cerebral artery Cerebral capillaries Superior sagittal sinus Internal jugular vein

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