Cardiovascular System

4. a muscular organ that pumps the blood with enough force necessary to circulate the blood to all the tissues in the body.
6. a network of muscular tubes that circulate blood, transport oxygen, nutrients, and waste throughout the body.
9. A blood vessel that carries rich-oxygen and nutrients blood away from the heart, to restore back to the body’s organs, and tissues.
10. a thick-walled chamber that pumps deoxygenated blood to the lungs through the pulmonary artery
12. a thin-walled chamber that receives oxygenated blood from the pulmonary veins.
13. The middle layer of the Heart Wall
14. a thin-walled chamber that receives deoxygenated blood from veins
15. The outer layer of the Heart Wall
16. Small blood vessels that facilitate the gas exchange (removing waste products)
17. The middle layer, containing smooth muscle and elastin, which regulates vessel diameter.

1. a thick-walled chamber that’s the heart's strongest chamber, responsible for pumping oxygen-rich blood through the aorta to the entire body
2. Also called the circulatory system, is where THE HEART and blood vessels transport oxygen, nutrients, and hormones throughout the body while removing waste products.
3. A blood vessel that carries deoxygenated blood to the heart from the tissues.
5. The inner layer of the Heart Wall
7. The 4 Doors in our hearts that allows blood to go in
8. The innermost layer, consisting of endothelial cells.
11. The outer layer, composed of connective tissue.