Circulatory System
by Kristy Miller

1. Heart
2. Blood Vessels
2.1. Artery
2.2. Capillairies
2.3. Veins
3. Blood
3.1. 4 types
3.2. Components
3.2.1. Platelets
3.2.2. Red Blood Cells
3.2.3. White Blood Cells
3.2.4. Plasma
3.2.4.1. Liquid part of blood
3.2.4.1.1. Mostly made up of water