The engine of life
The vast red highway
The river of life
Pioneers of the pulse
Keeping the beat
YOUR GOAL
Master of The human circulatory system
artiteacher The river of life
Sixty thousand miles of crimson roads (so long!) / Wrapping twice around the Earth, here we go! (here we go!)
artiteacher Platelets are tiny cell fragments that rush to seal leaks when a blood vessel is damaged.
artiteacher White blood cells make up a tiny fraction of blood but defend the body against pathogens.
artiteacher Pump the heart in perfect rhythm to discover how blood delivers oxygen.
Iron in blood: Your blood contains enough iron to forge a small metal nail, which is why blood tastes metallic.
The red fluid that circulates in the vascular system of humans, delivering oxygen and nutrients. The average adult body contains about five liters of this fluid, which travels through miles of vessels.
What percentage of human blood volume is made up of the liquid portion called plasma?
What unique structural feature do mature human red blood cells lack to make more room for oxygen?
What iron-rich protein inside red blood cells binds to oxygen and gives blood its red color?
How long does a typical red blood cell circulate in the human body before being recycled?
Unlike red blood cells, what can white blood cells do to reach infections in surrounding tissues?
Which blood component is actually a tiny cell fragment responsible for forming blood clots?
Which scientist published the classic four-factor theory of blood coagulation in 1905?