The two primary vessels supplying the right atrium begin this pathway. These vei
ID: 3509993 • Letter: T
Question
The two primary vessels supplying the right atrium begin this pathway. These veins are the ___ from the head and neck regions and the ___ from the lower body. The blood from these vessels enters the ___ , passes through the ___ , into the ___ . Blood then exits from this chamber through the ___ and enters the ___ . This vessel bifurcates into two ___ . They proceed to supply the lungs where oxygen and carbon dioxide is exchanged in the capillary beds. At this point, the blood vessels form into ___ to return blood to the heart. This portion of the circulatory system is collectively called the ___ . The first chamber that the oxygenated blood enters is the ___ , passes through the ___ and enters the ___ . Blood then exits from this chamber through the ___ and enters the major artery of the body called the ___ . Blood will flow through the smaller arteries, arterioles, capillaries and veins of the rest of the body through the ___ . The RBC will then begin its journey again!
Explanation / Answer
Numbering according to the blank spaces;
1) superior venacava
2) inferior venacava
3)right atria
4) Right atrio-ventricular junction(guarded by tricuspid valve)
5) right ventricle .
6) pulmonary artery
7)lungs
8)branches( right pulmonary artery and left pulmonary artery)
9)pulmonary venules and veins
10) pulmonary circulation
11)left atrium
12)left atrio ventricular junction(guarded by mitral valve)
13)left venticle
14)aortic valve.
15)aorta
16)pressure gradeint.
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