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Ex. 41 Structure of the Heart PowerPoint PPT Presentation


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Ex. 41 Structure of the Heart. Fibrous pericardium (outermost). Parietal pericardium . (inside lining of outer covering). Percardial cavity (space between). Epicardium (visceral pericardium). Myocardium (cardiac muscle). Intercalated disc*. Musculi pectinate. Papillary muscle.

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Ex. 41 Structure of the Heart

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Ex. 41 Structure of the Heart


Fibrous pericardium (outermost)


Parietal pericardium

(inside lining of outer covering)


Percardial cavity (space between)


Epicardium (visceral pericardium)


Myocardium (cardiac muscle)


Intercalated disc*


Musculi pectinate


Papillary muscle

muscle @ base of chordae tendineae


Chordae tendineae

"heart strings"


Trabeculae carneae (folds of muscle in ventricle)


Moderator band


Endocardium (inner lining of heart)


Ligamentum arteriosum


Right Atrium


Right auricle


Superior vena cava


Inferior vena cava


Coronary sinus


Interatrial septum


Tricuspid valve


Rt. ventricle


Interventricular septum


Pulmonary (semilunar) valve


Pulmonary trunk


Pulmonary arteries (L & R )


Left atrium


Left auricle


Pulmonary veins (R & L) – posterior view


Mitral (bicuspid) valve


Left ventricle


Aortic valve (above bicuspid valve medial cusp)


Aorta


Systemic Circulation


Cardiac circulation


Left coronary artery (only seen if auricle is open)


Circumflex artery


Anterior interventricular artery


Right coronary artery


Marginal artery


Posterior interventricular artery


Great cardiac vein


Middle cardiac vein


Next Ex. 44 Blood Vessels


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