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human transport (Charlotte) - Coggle Diagram
human transport (Charlotte)
main components
heart, blood and blood vessels
heart
there are valves present
blood vessels
arteries
carries blood away from the heart
veins
carries blood towards the heart
contain valves
ensures that blood only flows in one direction
capillaries
only one cell thick
allow the exchange of substances like carbon dioxide, oxygen, nutrients and waste materials between the blood and body cells
characteristics of blood vessels
veins
arteries
capillaries
components of blood
red blood cells
carries oxygen from the lungs to other parts of the body
contains haemoglobin to help transport oxygen more efficiently
platelets
prevents blood loss by forming clots
blood plasma
transports important substances like hormones, waste substances and carbon dioxide
white blood cells
they help fight against diseases by destroying bacteria
