| A | B |
|---|
| muscular system | helps the bones move in your body |
| nervous system | senses things and sends messages to your body |
| circulatory system | moves the blood through your body |
| respiratory system | takes air into the lungs and exhales it |
| digestive system | breaks food down into tiny pieces |
| excretory system | gets rid of waste from the body |
| skeletal system | give support and protection to the body |
| brain | I an the organ that conrols all other organs in the body, the skull protects me |
| stomach | my juices help break down food |
| heart | I am an organ made of muscle tissue, and have four chambers |
| skin | I am the organ that covers your whole body |
| kidney | I am the organ that removes waste from your body |
| lung | I inflate when air comes in and deflate when air goes out |
| small intestine | I am the longest organ in your body, and digestion takes place inside me |
| cell | smallest part of the body |
| organ | group of tissues that work together |
| system | a group of cells, tissues, and organs that work together |
| tissue | a group of cells |
