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14 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Heart |
Hollow muscular organ, divided into 4 chambers (varies in size by species), straddles midline within thoracic cavity just dorsal of sternum |
Cardiac muscle, pump that circulates blood through body |
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Pericardial sac |
Sac like membrane surrounding heart |
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Pericardium |
Tough, fibrous external layer |
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Parietal layer |
Lines pericardium |
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Aortic valve |
Semilunar valve that prevents back flow of blood from aorta to heart |
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Apex |
Rounded tip of heart, pointing left and downward |
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Atrial |
Ear-shaped continuation of left and right upper part of atria |
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Atrioventricular node |
Located in right atrium near lower portion of interact rial septum and composed of small mass of atypical cardiac muscle tissue (aka AV node) |
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Atrium |
Left/right upper chamber of heart |
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Bundle of His |
Band of specialized cardiac muscle fibers that arise in atrioventricular node and branch down on both sides of intervention large septum, transmitting atrial contraction rhythm to ventricles (also called atrioventricular bundle) |
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Chordal tendinae |
Tending us strings resembling cords that extend from cusps of atrioventricular valves to papillary muscles of heart |
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Conus arteriosus |
Upper, anterior angle of right ventricle where pulmonary artery begins (also called infundibulum of the heart) |
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Coronary arteries and veins |
Blood vessels of heart |
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Cusp |
Leaflet like segment of cardiac valve |
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