Crimson, scarlet, burgundy, cherry… blood flows through our bodies in all its vibrant shades of red. Let’s explore our circulation system! Now surgeons, don’t be squeamish as we dissect an animal heart and examine the veins, arteries and chambers up close.
They all work hard to move blood around our bodies.
Hearts pound, flutter and maybe skip a beat... What makes your heart race?
Is it a secret? Cross my heart, I won't tell!