Circulatory System

1. Circulatory System By: Ryan Hall & Alex Hernandez

2. Anatomy • The heart, blood, and blood vessels (capillaries, veins, and arteries) make up the Circulatory System

3. The Heart • The heart is an organ that relaxes and contracts 70 to 80 times per minute to pump blood throughout the body. • The heart takes deoxygenated blood from the veins and, using the lungs, pumps oxygenated blood through many arteries.

4. The Heart

5. The Blood • The blood travels through blood vessels. • Things like nutrients, water, O2, CO2, salts, and waste products are transported through the blood. • The blood also helps with bodily defenses.

6. The Blood

7. Blood Vessels • All arteries carry blood from the heart to all other organs. • Veins carry deoxygenated blood back to the heart. • The capillaries allow for gaseous exchange between the capillaries and tissue fluids

8. Blood Vessels

9. Medical Issues • Heart disease, aneurysms, high blood pressure, varicose veins, heart-attacks, heart burns, vascular disease, and heart bypasses are all things that can occur because of problems in the cardiovascular system.

10. Aneurysms • A brain aneurysm is when the artery that supplies blood to the brain has a weak wall. • If the aneurysm ruptures, it sends blood to the school and can case a stroke.

11. Heart Bypass • Heart Bypasses occur when coronary arteries are blocked and those are treated by finding an alternative path to the heart.

12. Other Medical Issues

13. Digestive System • The digestive system provides the heart with nutrients so the heart can keep beating. • The circulatory system takes the nutrients throughout the body through blood.

14. Respiratory System • This system provides all the oxygen in the blood that is then transported throughout the body by the circulatory system.

15. Muscular System • Cardiac muscle makes up the heart. • Smooth muscle makes up blood vessels.