4 · en
Short, simple sentences with “marrow”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
Excited to the marrow of their bones and imbued with purpose, they were ready to take on the opposing team, whose members, according to persistent rumours, wore razor blades in their knee pads.
To get to the marrow, the bone that contains it has to be split down the middle. And if the bone is small, the marrow does not yield. Therefore, you must first look for the long bones, those of the extremities.
But despite the efforts of scientists, it is still far from matching the bone marrow, the true and mysterious blood factory, although cloning and biotechnology give hope for the not too distant future, perhaps in the next few decades.
The bone marrow is responsible for the formation of the 180 million red blood cells that carry oxygen to the cells. It is also a natural storehouse of phosphorus and calcium among other mineral salts that ensure proper blood clotting, heartbeat and muscle contractions.
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