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How do you trace the body systems?

1. Trace the pathway of a drop of blood from the big toe where it picks up CO2 to the lungs where it exchanges gases, and back to teh big toe where it releases gases. This can be in a list form but it must be specific; which specific artery,etc. Include how the gases go into and out of that drop of blood. 2. You have just eaten a candy bar (mostly carbohydrates). Explain the digestion of the candy bar into glucose and then list the pathways the glucose will take to get to the cells in the big toe. Be specific Hint: first the blood will go through the heart. (trace from food in mouth to glucose molecules into the circulatory system and then out of the excretory system). 3. Most urea is made by the liver(makes and breaks down protiens) Trace the pathway of a molecule of urea from the liver until it exits the body. Again be specific with all of the parts. For example, just saying kidney will not be sufficient. *Need the 3 pathways separate but connected! ~thank you~

Public Comments

1. Do your own homework. Its not that hard once you have a go. Next time try putting each into a seperate question, people are more likely to help you.