The_________ is heart the center of the circulatory system.
Heart lungs
Next
The heart is a _muscle about the size of your fist.
bone joint muscle Next
The________ ribs protect your heart so when you fall down your heart is safe.
ribs skull joints Next
circulatory system The__________ takes the blood that contains oxygen and nutrients to all parts of our body.
Digestive system Circulatory system
Respiratory system Next
The_______ heart has 4 chambers.
stomach blood heart Home
makes The heart ______ movements that pump the blood around our body.
takes breathe makes Next
The________ heart is the most important organ in the body.
heart lungs stomach Next