If you go inside the walls of a car factory, you’re likely to encounter many different teams doing many different things. One team might make steering wheels. Another team might make seats. Other teams may assemble different parts of the engine.
But even though each team is doing its own thing, they all share a common goal: to make cars. Your body operates in much the same way. Different systems within your body are responsible for different jobs, yet they all share the common goal of keeping you alive. At the center of all of this activity is the heart. You could say it acts as the factory “foreman” to set the pace and regulate all of the other body systems.
Can you guess which of the body’s systems do the following things in your factory/body?
A) Grow fingernails and toenails
B) Create the sound that doctors listen for with a stethoscope
C) Push blood throughout your entire body
D) “Feed” the heart muscle