Chapter Eleven Understanding the Cardiorespiratory System

The Heart ä Pulmonary pump ä Systemic pump ä Atria ä Ventricles ä Septum ä Aorta ä Coronary arteries

The Blood Vessels ä Arteries - carry blood away from the heart ä Capillaries - smallest blood vessels where the oxygen and nutrients are exchanged for carbon dioxide and waste products ä Veins - the vessels that carry blood back to the heart

The Respiratory System ä Diaphragm ä Trachea ä Bronchi ä Bronchioles ä Alveoli

Aerobic & Anaerobic Activity Aerobic activities help improve cardiorespiratory fitness - walking, jogging, running, cycling, swimming, dancing, etc. Anaerobic activities which involve sudden, intensive, explosive muscle contractions can also play a role in cardiorespiratory fitness - sprinting and weight lifting

Cardiovascular Disease Coronary artery disease AtherosclerosisStroke

Prevention of Cardiovascular Disease ä Heredity (Race) ä Age ä Gender (male or female) Uncontrollable Risk Factors

Prevention of Cardiovascular Disease ä Smoking ä High Blood Pressure ä Unhealthy Cholesterol Levels ä Improving your Blood Fat Levels ä Lack of Physical Activity ä Obesity ä Diabetes Controllable Risk Factors

Understanding the Cardiorespiratory System Cardiorespiratory fitness is considered the most important aspect of physical fitness. Cardiorespiratory fitness enables you to have more energy, a lower level of body fat and a lower risk of cardiovascular disease. Return to Chapter Menu