trinity circulatory system
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how many times a day does your heart beat.
your heart beats 100,000 times a day.
What is blood made up of?
- Red blood cells
- White blood cells
blood is carried around the body in three types of vessels
how many red blood cells would fit in to 1cm
5 000 000 000
the heart pumps blood around the body .what are the two sides of the heart?
- the right side pumps blood to the lungs
- the left side pumps blood to the rest of the body
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