Human Body Systems

1. Digestive System

1.1. Mouth and Stomach Movement

1.1.1. Swallowing

1.1.2. Chewing

2. Excretory System

2.1. Breathing

2.2. Crude

2.3. Urine

2.4. Kidneys working

3. Nervous System

3.1. nerve cells

3.2. neurons

4. Circulatory System

4.1. Heart rate

4.2. Vessels

4.3. Vanes

4.4. Bloodstream

5. Muscular System

5.1. Movement

5.1.1. Running

5.1.2. Walking

5.1.3. Swimming

5.1.4. Jumping

6. Immune System

6.1. Tissue

6.2. Organs

6.3. Lungs

6.4. Cells

7. Skeletal System

7.1. Holds up Organs