Nostrils are the opening into the nasal passages that are lined with hairs called cilia.  

   Why are cilia important?

It is commonly called a throat . Which of the following served as a way where food and  air passes?

What is the function of the rib cage?

Blood is the liquid part of the circulatory system. Which is the main work of the blood?

Our blood has four components. Which blood component defends the body against infections?

What is the pumping organ of the body that can be found in the middle of the chest cavity?

Our brain controls everything we do, which part of the brain is responsible for the body's balance and coordination?

The nervous system has many different functions in the body. Which of the following does NOT describe the nervous system?

The peripheral nervous system is one of the components of the nervous system. Which of the following make up the peripheral nervous system?