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16 Cards in this Set
- Front
- Back
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What is the parietal pericardium? |
Lines the pericardial sac. Fibrous connective tissue- dense irregular Mesothelium- consists of simple squamos Areolar tissue- consists of loose connective |
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What is the visceral pericardium? |
Covers the surface of the heart Mesothelium Areolar tissue |
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3 Layers of the heart wall? |
Epicardium(Visceral pericardium) MyoCardium- Middle layer that is composed of cardiac muscle tissue. Endocardium- lines inside of myocardium, covers the heart valves and tendons |
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Major structures of the heart? |
Base Apex Coronary Sulcus |
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What does the right atrium do? |
Receives deoxygenated blood from superior and inferior vena cavae. |
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Features of the right atrium? |
Interatial septum- separates two atria Foramen ovale- opening in septum during fetal development. Fossa Ovalis- Small depression in septum after birth Pectinate muscles- muscles in anterior atrial wall Auricles- Expendable sections in both atria |
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What does the left atrium do? |
pumps oxygenated blood from two left and two right pulmonary veins |
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What is the function of the right ventricle? |
Pumps deoxygenated blood to the lungs. |
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Features of the right ventricle? |
Interventricular septum- wall separating two ventricles. TRabeculae Carneae- Rigged inner surface of both ventricles. Chordae tendinae- Tendons that attach each cusp of the valves to the paillary muscles. Papillary muscles- muscles in the ventricles that contract to tighten chordae tendinae to limit movement of valves and cusps |
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Function of the left ventricle? |
thicker ventricle that pumps oxygenated blood through the systemic circuit. |
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4 valves of the heart? |
Right atrioventricular valve- tricuspid valve
Left atrioventricular valve - bicuspid valve or mitral Pulmonary semilunar valve
Aortic semilunar valve |
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Purpose of the superior and inferior vena cava? |
Carry deoxygenated blood from systemic circulation to right atrium |
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Purpose of coronary sinus? |
vein that lies in the coronary sulcus which carries deoxygenated blood from coronary circulation to the right atrium |
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Purpose of Aorta? |
carries oxygenated blood from left ventricle to the systemic circulation. |
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3 parts of Aorta? |
AScending Aorta Aortic Arch Descending aorta |
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Where is the posterior interventricular artery located? |
lies within the posterior interventricular sulcus |
