The circulatory system is the organ system that transports oxygen and nutrients throughout the body and carries wastes. It's made of the heart, blood and blood vessels
our blood
what is blood made of?
blood cells, plasma, platelets
red blood cells
contains a protein called hemogobin which allows it to carry oxygen
white blood cells
recognises and destroys bacteria and viruses
plasma
protein rich liquid that carries blood cells
the heart
blood vessels
Coronary artery disease: a buildup of plaque (fat, cholesterol, calcium, ...) in the coronary arteries, which can lead to heart attack
Symtoms: tiredness, dizziness, pain/pressure/burning sensation in the upper body, nausea, shortness of breath, sweating, ...
what can disrupt the regular beat of the heart?
physical activity, stress, health, temperature
Which way do arteries and veins carry blood?
arteries carry blood away from the heart, veins towards
what are capillaries?
tiny blood vessels that let substances diffuse in and out of blood
