Question

what is oxygen-poor blood

Answer 1

Answer:

Oxygen-poor blood returns from the body to the heart through the superior vena cava (SVC) and inferior vena cava (IVC), the two main veins that bring blood back to the heart. The oxygen-poor blood enters the right atrium (RA), or the right

Answer 2

Answer:

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Explanation:

Haemoglobin- a protein molecule, carries o2 in the blood vs called arteries and after o2 is used by tissues, the deoxyg. Hb is carried by vessels called veins -> heart -> lungs to get new o2 molec. Added. When hb is low in quantity or abnl.In str-> o2 is low in blood. Iron, folate, (folic acid) B12 deficiency- anemia o2 defective basic str.As in thalssemia, sicklecell dz. 2.Heart defects->mixing a &venous bloo.

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