CV-Sp10.pptx

CV-Sp10.pptx - CV 1 Topical Organization of the...

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April 19, 2010 1 CV 1 Topical Organization of the Cardiovascular Lectures 1. Function & Anatomy Heart & Vascular System – Chapter 9 2. Cardiac Electrophysiology – Chapter 9 3. Hemodynamics – Static & Dynamic Hemodynamic Properties – Chapter 10 4. Cardiac Mechanics – Chapter 9 5. Cardiac Output – Chapter 9 6. Peripheral Vascular System – Chapter 10 7. Regulation of Blood Pressure – Chapter 10
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April 19, 2010 2 CV 2 Topic #1: Functions & Anatomy of the CV System Chapter 9 Functions 1. Delivery System for oxygen, carbon dioxide, nutrients, products of metabolism, & hormones 2. Temperature Regulation 3. Hydraulic Skeleton 4. Motor Function – jump movement for Jumping Spiders
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April 19, 2010 3 CV 3 Anatomy of the Cardiovascular System & Flow of Blood Fig 9-1 Right Heart and Left Heart Flow of Blood through Heart Components of Vascular System Arteries – Aorta, Large Arteries, Small Arteries Distributing network Arterioles – Resistance Vessels Capillaries – Exchange Vessels Venules & Small Veins – some exchange, capacitance vessels Large Veins and Inferior and Superior Vena Cava – Collecting Vessels returning blood to the heart.
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April 19, 2010 4 CV 4 Specialized Cells and Structures within the Heart Specialized Cells – cells with differing properties and functions Muscle Cells – Contractile Proteins & Generate Pressure. Atria & Ventricles Pacemaker Cells – Self Depolarize and Initiate Activation Heart Purkinje Fibers – Cells Specialized for Rapid Conduction Cells in AV Node – Slow Rate of Rise and Low Amplitude slow cell to cell spread of activation. Specialized Structures within the Heart SA Node – Activation normally originates from Pacemaker Cells Localized here. Internodal and Interatrial Preferential Conduction Pathways AV Node – Site conduction delay in atrioventricular activation. Filter atrial arrythymias from ventricles. Contains some Pacemaker Cells. His Bundle & Bundle Branch System – Composed of Purkinje Fibers. Specialized Ventricular Conducting System. – Purkinje Fibers can develop pacemaker activity. Figure 9-8
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April 19, 2010 5 CV 5 Topic 2: Cardiac Electrophysiology Chapter 9 Outline 1. Myogenicity of Vertebrate Heart 2. Action Potentials from Regions of the Heart 3. Ion Channel Activation & Generation of the Cardiac Action Potential – Purkinje Fiber & SA Nodal Pacemaker Cell 4. Sequence of Activation of the Heart – timing function of capacity of one group of cells to generate action potentials in the adjacent cells. 5.
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CV-Sp10.pptx - CV 1 Topical Organization of the...

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