 | Term | Definition |
| |
Cardiovascular System |
Carries food and oxygen, carries wastes away from cells, fights diseases, and maintains your body temp. |
| |
Heart Valves |
Prevents backflow |
| |
Pacemaker |
Stimulates contraction |
| |
Pulmonary |
Lungs and heart |
| |
Coronary |
Heart itself; feeds the heart |
| |
Systemic |
All other systems |
| |
Arteries |
Carries blood away from heart, thick, elastic walls lined with smooth muscle |
| |
Veins |
Carries blood to the heart, thin walls, little muscle; valves |
| |
Capillaries |
The connection of arteries and veins, walls only one cell thick, provides surface for material exchange |
| |
Blood Pressure |
Pressure on walls of arteries |
| |
Systolic |
Preassure when ventricles are contracting |
| |
Diastolic |
Preassure when ventricles are relaxed |
| |
Normal |
120/80 or 110/70 (systolic/diastolic) |
| |
Heart Disease |
Major cause in the US, hypertension(high blood preassure) is one indicator of possible heart disease |
| |
Heart Attack |
A block in the coronary arteries |
| |
Stroke |
A block in the arteries in the brain |
| |
Atherosclerosis |
Build up of plaque on artery walls |
| |
Controllable Risk Factors for Heart Disease |
High blood preassure, high cholesterol, smoking, obesity, physical inactivity, stress |
| |
Uncontrollable Risk Factors for Heart Disease |
Age, gender;heredity, high blood preassure, high cholesterol |
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