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Cardiovascular System (Disorders of the Cardiovascular System…
Cardiovascular System
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Blood Flow
- Vena Cava (superior and inferior)
- Right atrium
- tricuspid valve
- Right ventricle
- Pulmonary valve
- Pulmonary trunk
- Pulmonary arteries
- Pulmonary veins
- Left atrium
- mitral valve
- Left ventricle
- Aortic valve
- Aorta
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Intrinsic factors
Atrioventricular (Av Node): at junction between atria and ventricles
- atrioventricular (AV) bundle
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SA-Node pacemaker: located in the right atrium, starts heart and sets pace, sequential stimulation occurs at other autorythmic cells
Purkinje fibers: specialized myocardial muscle fibers that conduct electric impulse, spread within muscles of ventricular wall
Major arteries & veins
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Cardiac Veins: carries blood away from heart, blood empties into the right atrium, via the coronary sinus
Layers of the heart
Coverings
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Pericardium: double serous membrane, produces serous fluid
- Visceral pericardium: (epicardium) next to the heart
- Parietal pericardium: outside layer
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