Circulatory System

Function: 

The function of the Circulatory System is to pump blood in the human body so each part of the body can receive oxygen.

Organs: 

Heart {Has four chambers} (pumps blood), Veins (takes blood to the heart), Arteries (takes blood away from the heart to all parts of the body that need the oxygen rich blood, then takes carbon dioxide which is a waste product back to the heart)

Interactions with Other Systems:
The circulatory system works with the skeletal system because it ships out the blood cells produced by the skeletal system in the bone marrow. It also works with the endocrine system to ship out the hormones made by the endocrine system.

                                                    Analogy:

The circulatory system is like the UPS because the circulatory system takes blood cells from the heart with Oxygen in them then ships it various places in the body from your brain to your toes because they need the oxygen in the blood cells. The heart would be the post office and the mail trucks, delivery people would be the veins shipping blood to the parts of the body, blood would be the package they are delivering.

Structure and Function:

The heart is the most important part of your circulatory system because it produces the blood cells with the oxygen then the veins take it away to the parts of the body. Without the heart you would not have a blood producing station assisting you with blood made with every breath you take which is then mixed with a blood cell then shipped out to assist the other body parts.