Use Lego to model the path of blood

PATH OF BLOOD EXERCISE

We will use A HUGE map of the circulatory system to represents a subway with stations.  The stations are the lungs, heart, legs, head, intestines, liver, kidneys and all the arteries and veins that connect them.  We will model the passengers entering and leaving this subway today. 

Pieces of lego two kinds to be cars on the subway

Hemoglobin car

Plasma car

Pieces of lego to be the four kinds of passengers

Oxygen

Carbon dioxide

Waste

Nutrients 

Now everyone take a hemoglobin car and start at the lung, oxygen hops on at the lung.  Follow it to the heart aorta and lets go to legs where oxygen gets off and carbon dioxide hops on. 

Put a plasma car on and pick up carbon dioxide too.  Now travel back to heart then lungs, CO2 gets off and oxygen gets on…

Model the rest of the passengers going through the entire system.  Remember that

Oxygen and CO2 can ride on hemoglobin car and everyone but oxygen rides on the plasma car

Notes on Plasma and lymph

And Formed Elements

Continue working on the guided study