Respuesta :
A set of directions for a red blood cell to deliver oxygen to the brain is
Brain ----- veins--- heart---- lungs---- heart----- aorta---- arteries.
What is RBCs?
Red blood cell, also called erythrocyte, cellular component of blood, millions of which in the circulation of vertebrates give the blood its characteristic colour and carry oxygen from the lungs to the tissues.
Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body. Following is the set of direction to deliver oxygen to the brain:
Brain ----- veins--- heart---- lungs---- heart----- aorta---- arteries.
Learn more about RBCs here:
https://brainly.com/question/4523445
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