Cardiovascular System

1. Cardiovascular System Presentation by: Yesenia Ramos

2. Is made up of three main elements: • The heart • Blood • Blood vessels Your Cardiovascular System

3. The heart weights between 7-15 ounces. By the end of a long life, a person’s heart may have beat more than 3.5 billion times. • In fact, each day the average heart beats 100,000 times, pumping about 2,000 gallons of blood. (Human Anatomy & Physiology. 6th Edition)

4. Your heart works as a pump that pushes blood to the organs, tissues, and cells of your body. • Blood delivers oxygen and nutrients to every cell and removes the carbon dioxide and waste products made by those cells. • Blood is carried from your heart to the rest of your body through a complex network of arteries, arte- arteries, and capillaries. • Blood then returns to your heart through venules and veins. Heart at work

5. The Arterial System. • Your arteries are responsible for carrying blood that is rich in oxygen away from your heart. • For the most part, these have thick walls which enables the ability to support the high pressure that is created when your heart pumps blood along them.

6. The Venous • System. • Your veins are responsible for carrying blood that is poor in oxygen toward the heart. • Unlike arteries, these have thinner walls due to the lower pressure of blood flow. • Veins contains valves which help prevent the backflow of blood away from the heart.

7. DID YOU KNOW… • That if all the vessels of this network in your body were laid end-to-end, they would extend for about 60,000 miles (more than 96,500 kilometers) which is far enough to circle the earth more than twice! Human Anatomy & Physiology. 6th Edition.

8. Lack of a Healthy Cardiovascular System may result in many types of diseases… • Heart attack • Artery disease • Cardiac arrhythmia • Cardiovascular disease • Congenital Cardiovascular diseases • Coronary artery disease • Coronary cardiovascular disease • Heart valve disease • High Cholesterol • Stroke

9. What Is a Stroke?Stroke is a medical emergency and the third leading cause of death in the U.S. It occurs when a blood vessel in the brain bursts or, more commonly, when a blockage develops. Without treatment, cells in the brain quickly begin to die. The result can be serious disability or death. http://www.medicinenet.com/stroke_pictures_slideshow/article.htm#

10. Stroke Symptoms • Signs of a stroke may include: • Sudden numbness or weakness of the body, especially on one side. • Sudden vision changes in one or both eyes. • Sudden, severe headache with unknown cause. • Sudden problems with dizziness, walking, or balance. • Sudden confusion, difficulty speaking or understanding others. • Call 911 immediately if you notice any of these symptoms. http://www.medicinenet.com/stroke_pictures_slideshow/article.htm#

11. Stroke: Time = Brain Damage • Every second counts when seeking treatment for a stroke. When deprived of oxygen, brain cells begin dying within minutes. There are clot-busting drugs that can curb brain damage, but they have to be used within three hours of the initial stroke symptoms. Once brain tissue has died, the body parts controlled by that area won't work properly. This is why stroke is a top cause of long-term disability. http://www.medicinenet.com/stroke_pictures_slideshow/article.htm#

12. Ischemic Stroke • The most common type of stroke is known as an ischemic stroke. • Nearly nine out of 10 strokes fall into this category. The culprit is a blood clot that obstructs a blood vessel inside the brain. The clot may develop on the spot or travel through the blood from elsewhere in the body http://www.medicinenet.com/stroke_pictures_slideshow/article.htm#

13. Hemorrhagic Stroke • Hemorrhagic strokes are less common but far more likely to be fatal. They occur when a weakened blood vessel in the brain bursts. The result is bleeding inside the brain that can be difficult to stop. http://www.medicinenet.com/stroke_pictures_slideshow/article.htm#

14. Mini-Stroke� (TIA) • A transient ischemic attack, often called a "mini-stroke," is more like a close call. Blood flow is temporarily impaired to part of the brain, causing symptoms similar to an actual stroke. When the blood flows again, the symptoms disappear. A TIA is a warning sign that a stroke may happen soon. It's critical to see your doctor if you think you've had a TIA. There are therapies to reduce the risk of stroke. http://www.medicinenet.com/stroke_pictures_slideshow/article.htm#

15. What Causes a Stroke? A common cause of stroke is atherosclerosis http://www.medicinenet.om/stroke_pictures_slideshow/article.htm#

16. Risk Factors: Chronic Conditions High blood pressure High cholesterol Diabetes Obesity Taking steps to control these conditions may reduce your risk

17. Risk Factors: Behaviors Risk Factors: Diet • Smoking • Getting too little exercise • Heavy use of alcohol • A poor diet may increase risk of stroke. • Eating too much fat/cholesterol • Too much salt can contribute to high blood pressure. • Too many calories can lead to obesity. http://www.medicinenet.com/stroke_pictures_slideshow/article.htmstroke risk.#

18. Age • Family history of strokes • Gender • Race http://www.medicinenet.com/stroke_pictures_slideshow/article.htm# Risk Factors beyond your Control

19. Prevention: Stroke Medications Stroke Prevention: Lifestyle • Quit smoking. • Exercise and maintain a healthy weight. • Limit alcohol and salt intake. • Eat a healthier diet with more veggies, fish, and whole grains. • Anti-platelet medicines, including aspirin. • Anti-clotting drugs, such as warfarin. • If you have high blood pressure, your doctor will prescribe medication to lower it. http://www.medicinenet.com/stroke_pictures_slideshow/article.htm#

20. Helps blood vessels relax to promote optimal blood flow in your body* • Aids in helping to maintain healthy blood pressure levels that are already within the normal range* • Helps support healthy sexual function in men * • Promotes healthy breathing* • Provides vital support for your immune system* • Boosts skin health* • Enhances your exercise tolerance* • Supports healthy kidney function* • Promotes your overall cardiovascular system vitality* Why wait? Start supporting your cardiovascular system today!

21. Hole, John W., Human Anatomy & Physiology. 6th edition. Wm. C. Brown Publishers. Dubuque, Iowa, Melbourne, Oxford, England. 1993. McCraken, Thomas. Wall Chart of Human Anatomy. Visible Productions. 2001. http://www.medicinenet.com/stroke_pictures_slideshow/ article.htmstroke risk. Http://www.texasheart.org/HIC/Anatomy/anatomy2.cfm?&RenderForPrint=1 Resources