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Dima020 [189]
3 years ago
12

In utero the fetus receive oxygenated blood and gives back deoxygenated blood through umbilical arteries and veins attached to t

he placenta. Given what you know about the definition of arteries and veins, which of the two brings oxygen rich blood to the fetus?
a. Umbilical artery
b. Umbilical vein
c. What? I didn't realize we were already on the repro section
Medicine
1 answer:
KIM [24]3 years ago
7 0

Answer:

B

Explanation:

The umbilical vein carries oxygenated, nutrient-rich blood from the placenta to the fetus, and the umbilical arteries carry deoxygenated, nutrient-depleted blood from the fetus to the placenta

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7 0
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The thyroid gland is an organ that belongs to the endocrine system and its function is to synthesize hormones that are responsible for controlling the body's metabolism, this gland has an important characteristic and that is that the hormones it produces have a unique chemical composition due to They are the only hormones that contain iodine in their structure, this in turn is essential for its functioning because the body does not synthesize it and it must be consumed in the diet. When a small dose of the radiopharmaceutical iodine 131 (Sodium Iodide 131I) is consumed, it is absorbed into the bloodstream and concentrated by the thyroid gland, where it begins to destroy cancer cells in the gland. 131I quickly attaches itself to thyroid cells to destroy them, but continues to emit radioactivity for a long time: it takes 8 days to halve. The beta radiation particles of 131I, which we call radioiodine or radioactive iodine, have a range of 2mm and act for a long time in a constant way. Fortunately, the body's metabolism quickly expels iodine through the urine, so that in one day the amount of iodine has decreased considerably.

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