Order the structures listed such that they sequentially detail the path that a r
ID: 65081 • Letter: O
Question
Order the structures listed such that they sequentially detail the path that a red blood cell would follow as it made its way from the right atrium to a capillary bed supplying blood to your 'little piggy' toe and returned to the right atrium. Hint: You start with right atrium = #1 and the structure you label as #16 should be the structure the RBC is in just before it re-enters the right atrium.
____ aortic semilunar valve
____ pulmonary vein
____ left ventricle
____ system small arteries and arteriole
____ systemic venule and small vein(s)
____ aorta
__1__ right atrium
____ capillary bed in foot
___ mitral (bicuspid) valve
____ inferior vena cava
____ tricuspid valve
____ pulmonary capillary bed
____ right ventricle
____ left atrium
____ pulmonary artery
____ pumonary semilunar valve
Explanation / Answer
The order of blood flow:
__1__ right atrium
_ 2___ tricuspid valve
__3__ right ventricle
__4__ pumonary semilunar valve
__5__ pulmonary artery
__6__ pulmonary capillary bed
__7__ pulmonary vein
__8__ left atrium
_ 9__ mitral (bicuspid) valve
__10__ left ventricle
__11__ aortic semilunar valve
__12__ aorta
__13__ system small arteries and arteriole
__14__ capillary bed in foot
__15__ systemic venule and small vein(s)
__16__ inferior vena cava
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