Human Body Systems
by Addison Englert
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