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Cardiovascular physiology

Cardiovascular physiology. The Need for a Circulatory System. The Need for a Circulatory System. Lungs ( gas exchange) Gastrointestinal tract (absorption and elimination) Kidneys (balance of water and electrolytes) Skin ( exchange of water and electrolytes and exchange of heat).

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Cardiovascular physiology

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  1. Cardiovascular physiology

  2. The Need for a Circulatory System

  3. The Need for a Circulatory System • Lungs( gas exchange) • Gastrointestinal tract(absorption and elimination) • Kidneys(balance of water and electrolytes) • Skin (exchange of water and electrolytes and exchange of heat)

  4. The Arrangement of The cardiovascular system High pressure system Low pressure system • Lymphatic Circulation is associated with both ones

  5. The Arrangement of The cardiovascular system

  6. The Arrangement of The cardiovascular system Distribution of blood to the different regions of the body determined by: • Cardiac output • Contractile state of the arterioles

  7. Other Function of Cardiovascular System • Heart • Secretion of hormones (atrial natriuretic peptide) • Regulation of the release of other hormones (Like ADH) • Vessels • Secretion of hormones (Nitric oxide [NO], Enditheilin-1[ET-1] and prostacyclin[PGI2]) • Inflammatory responses

  8. The Development of Cardiac and Vascular Function • Adaptation: • During exercises • During change position Neuronal Reflexes are rapid, short-acting mechanism Hormonal Reflexes are slow, long-acting mechanism

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