Circulatory system
by Kristy Miller
1. Respiratory system
1.1. Lungs
2. Problems
3. Blood
3.1. Four components
3.1.1. 1.
3.1.2. 2.
3.1.3. 3.
3.1.4. 4.
4. Blood vessels
4.1. 3 types
4.1.1. 1.
4.1.2. 2.
4.1.3. 3.
5. Heart
5.1. Four chambers
5.1.1. Right side of heart
5.1.1.1. 1.
5.1.1.2. 2.
5.1.2. Left side of heart
5.1.2.1. 3.
5.1.2.2. 4.