These are the factors for 6

33

This is the major organ in your circulatory system

The main purpose of your respiratory system

This system is the ____ system of your body.

These are the factor pairs for 16

23

The number of chambers on each side of your heart

The major organs in this system

The two main components of your central nervous system

These are the factors pairs for 36

59

The name of each of the chambers in the heart

This body part of the respiratory system is located in your throat

The number of layers that protects your spinal cord

These are the factors for 49

1

The three things that make up your circulatory system

You breathe this in when you are breathing in air

This system controls movement of your body, reflexes, breathing, and this specific action that happens everyday

These are the factors for 100

91

This side of your heart gives blood to your lungs

This dome shape muscle helps your lungs move

This is the basic working unit of the nervous system