Exercise 18-3 n this exercise you will trace the blood flow through various circ

Question

Exercise 18-3 n this exercise you will trace the blood flow through various circuits in the body. As you trace, keep the following hints in mind: Time to Trace! 1 Don't forget about the hepatic portal system. Remem MATERIALS Laminated outline of the human body Water-soluble marking pen most venous blood coming from the abdominal organs has to before it can enter the general circulation. the dural sinuses, then into the internal jugular vein. the bepatic portal vein and the hepatic portal system I Don't forget that the venous blood in the brain drains first into I If you start in a vein, you have to go through the venous system, through the right heart, through the pulmonary circuit, and then through the left heart before you can get back to the arterial system. I If you start in an artery, you have to go through the arterial system and then through a capllary bed before you can get to the venous system. You can't go backward through the arterial system-that's cheating. 1 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 heart and lungs, and then reenter the arterial circuit. Following is an example in which 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 iliac vein right common iliac vein inferior vena cava right atrium tricuspid valve right ventricle +pulmonary valve pulmonary trunk +pulmonary artery pulmonary capillaries +pulmonary veinsleft atrium+mitral valve +left ventricle + aortic valve ascending aorta aortic arch left common carotid artery left internal carotid artery End Wasn't that easy?

Explanation / Answer

cephalic vein>median cubital vein>basilic vein>brachial vein> superior vena cav>right atrium>tricuspid valve>right ventricle>pulmonary valve>pulmoary trunk>pulmonary artery>pulmonary capillaries>pulmonary veins>left atrium>mitral valve>left ventricle>aortic valve>ascending aorta>aortic arch>right common cortid artery>right internal carotid artety.

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