1. FLOW OF BLOOD AND VESSELS
By: Emily, Allegra, Matt
and Greg

2. Major Veins and Arteries
Leading to the heart
Superior Vena Cava
Inferior Vena Cava
Pulmonary Artery
Leading from the heart
Aorta
Descending Aorta
Left and Right Pulmonary veins

3. Major Veins and Arteries
On the heart
Aorta
Right and Left Coronary Artery
Coronary vein
Small connecting blood vessels
Main branch of left coronary artery
Coronary Sinus

4. VEINS Carries blood to the heart More flexible than
arteries and walls are
thinner
Low pressure
Larger veins contain valves

5. ARTERIES Carries blood away from the heart Thick Walls
High Blood Pressure

6. CAPILLARIES Smallest and most numerous of blood vessels
Conveys blood between arteries and veins
Enters tissue to form capillary beds

7. Flow of Blood Through Heart
Blood returning from the body is low in oxygen.
It enters the Right Atrium, passes into the Right Ventricle and is pumped into the lungs, where it is enriched with oxygen.
The Oxygen-rich blood then passes back into the Left Atrium and is pumped back into the body via the Left Ventricle.

8. Flow of Blood Through Body
Two types:
Systemic System: Carries oxygen-rich blood to all body tissues except lungs, and returns oxygen-poor blood to the Right Atrium.
Pulmonary System: Carries Oxygen-poor blood from Right Ventricle to lungs and returns oxygen-rich blood to Left Atrium.
FUN FACT!: The total amount of veins equals 60,000 miles… WOW!