👉 Todd's red blood cells were a whirlwind of motion, slipping between capillaries at lightning speed. Once he finished his marathon run, they promptly returned to the bone marrow, ready for another race against fatigue.
👉 Todd's red blood cells were a whirlwind of motion, slipping between capillaries at lightning speed. Once he finished his marathon run, they promptly returned to the bone marrow, ready for another race against fatigue.
https://goldloadingpage.com/word-dictionary/todd blood cells
