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Explore the functions, common disorders, and nursing assistant actions related to circulatory system care. Learn about diagnostic tests and the impact of diseases on cardiovascular health. Discover the organs involved and how peripheral vascular diseases affect the body.
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Unit 40 Circulatory (Cardiovascular) System
Objectives • Spell and define terms. • Review the location and functions of the organs of the circulatory system. • Describe some common disorders of the circulatory system.
Objectives • Describe nursing assistant actions related to care of patients with disorders of the circulatory system. • List five specific diagnostic tests for disorders of the circulatory system.
Introduction • The circulatory system may be thought of as a transportation system. • It takes nourishment and oxygen to the cells and carries away waste products. • The closed system is kept in motion by the force of the heartbeat.
Introduction • Diseases that attack any part of this system interfere with overall body function. • Long-standing diseases of the cardiovascular system eventually affect the pulmonary system as well.
Structure and Function • The organs of the cardiovascular system include: • Heart • Blood vessels • Lymphatic vessels • Lymph nodes • Spleen • Blood
Peripheral Vascular Diseases • Blood vessels that serve the outer parts of the body, particularly those of the hands and feet: • Peripheral blood vessels
Peripheral Vascular Diseases • Diseases of these vessels affect the parts of the body through which they pass. • Health of these vessels also influences heart function.
Heart Conditions • Heart disease may sometimes be caused by an infection • Most heart disease develops because of changes in the blood vessels • As the openings of the blood vessels become smaller, the heart must work harder and harder to do its job of pumping blood to the body.